Through My Eyes

White board to scribble my thoughts in Black…

White Cheeked Barbet

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White Cheeked Barbet by Sushil Katre
White Cheeked Barbet, a photo by Sushil Katre on Flickr.

Baby white cheeked barbet in front of our house. This is the nest of the barbet in the hole of the tree. We observed two other adult barbets flying in and out of the nest. This nest is visible from our kitchen 🙂


Written by Sushil Katre

April 3, 2013 at 3:11 PM

Gmail – How to Find All Unread Messages

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How difficult is it to see all your unread mails? Well, I though not too difficult and even after spending good 7-8 minutes trying and searching through various options in Gmail, I was not able to figure out how to do it.

Here’s how you can see all the unread emails, be it in the archive or the Inbox or anywhere else-

0) If you use the drop-down and choose “Unread” from the list, all it’s going to do is select the checkboxes next to the unread messages in the list—not that useful for cleaning out your inbox. SO that’s not the way to do it.

Find All Unread Messages in Gmail

1) All you need to do is type is: into the search box, and the search suggestions box will pop up and let you select the is:unread from the list. Don’t worry if the pop up doesn’t have is:unread, just type into the box yourself.

And now, you’ll see all the unread messages in your email account.

If you do this search repeatedly, you can use “l:unread” or even “l:^u” instead of “is:unread” (or “label:unread”).

You can also add the label: operator to the search undead mails from only the label group. For example, using label:inbox on the end of the search will allow you to filter down to just emails in your inbox.

is:unread label:inbox

Enjoy cleaning your mailbox!

Written by Sushil Katre

March 15, 2013 at 5:01 PM

DIY Project : Recycled Scrap Paper Notebook

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I was collecting these one sided printouts for a long time. There are many a times when one sided printouts can not be avoided specially with train / plain tickets. Thankfully Indian Railways now allows passengers to travel with SMS ticket. I am hopeful that Bangalore International Airport also allows people to enter the airport with valid SMS ticket instead of a printout.

So I had a lot of such one side printed papers which I was using to write random stuff and decided to make a nice notebook out of it.

Its really simple, first I folded the A4 paper from the center and applied glue on the inner boundaries. Now this becomes a two sided blank paper. I made 20 such pages.

Next I punched two holes along one of the longer sides of the paper. These holes were on either sides of the center.

There was a box of Papa John’s pizza box lying around the corner for a long time. The cover for the notebook was cut out of this pizza box cardboard, litter bigger than the pages so that it can cover the pages nicely.

I punched two holes on the cover too. Then I joined the cover together using a paper strip. This paper strip will sit nicely on the binding side once the papers are put together.

I used the fallen thread from the curtain to bind the pages and cover together.

Then I and Priyanka tried our hands on News Paper Mosaic and decorated the front cover the news paper Mosaic. After this we made a news paper collage on top of the mosaic (which became the background). We did another collage on the back cover.

The collage talks about rain water harvesting 🙂

Here’s the notebook

Front of the Notebook with Mosaic and Collage

Front of the Notebook with Mosaic and Collage

Side View of the Notebook

Side View of the Notebook

Back of the Notebook with Collage

Back of the Notebook with Collage

Side view of the notebook

Side view of the notebook

Do let me know what you think about this 🙂

Written by Sushil Katre

February 11, 2013 at 3:36 PM

About UID / ADHAAR and How to Get It

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What is the difference between UID and Aadhar?

Both are same, UID project is known as AADHAAR which means ‘support’ or ‘foundation’.

What is Aadhar?

Aadhaar is a 12 digit individual identification number issued by the Unique Identification Authority of India on behalf of the Government of India. This number will serve as a proof of identity and address, anywhere in India. Any individual, irrespective of age and gender, who is a resident in India and satisfies the verification process laid down by the UIDAI can enroll for Aadhaar.

Each individual needs to enroll only once which is free of cost.

Each Aadhaar number will be unique to an individual and will remain valid for life. Aadhaar number will help you provide access to services like banking, mobile phone connections and other Govt and Non-Govt services in due course.

How to Apply for Aadhar?

If you want to get this UID (I am planning to apply for one, as I hear UID is being made mandatory for certain services like, gas connection, EPF etc.) then here’s what you need to do:

Aadhaar enrollment is free so you need not pay anyone for this. You need to go to one of the authorized Aadhaar enrollment center anywhere in India with your identity and address proof.

UIDAI process accepts 18 PoI (Proof of Identity) and 33 PoA (Proof of Address) documents and below is the list of nationally valid list of documents:

Supported PoI Documents Containing Name and Photo:

  1. Passport
  2. PAN Card
  3. Ration/ PDS Photo Card
  4. Voter ID
  5. Driving License
  6. Government Photo ID Cards/ service photo identity card issued by PSU
  7. NREGS Job Card
  8. Photo ID issued by Recognized Educational Institution
  9. Arms License
  10. Photo Bank ATM Card
  11. Photo Credit Card
  12. Pensioner Photo Card
  13. Freedom Fighter Photo Card
  14. Kissan Photo Passbook
  15. CGHS / ECHS Photo Card
  16. Address Card having Name and Photo issued by Department of Posts
  17. Certificate of Identify having photo issued by Gazetted Officer or Tehsildar on letterhead
  18. Disability ID Card/handicapped medical certificate issued by the respective State/UT Governments/Administrations

Supported PoA Documents Containing Name and Address

  1. Passport
  2. Bank Statement/ Passbook
  3. Post Office Account Statement/Passbook
  4. Ration Card
  5. Voter ID
  6. Driving License
  7. Government Photo ID cards/ service photo identity card issued by PSU
  8. Electricity Bill (not older than 3 months)
  9. Water bill (not older than 3 months)
  10. Telephone Landline Bill (not older than 3 months)
  11. Property Tax Receipt (not older than 3 months)
  12. Credit Card Statement (not older than 3 months)
  13. Insurance Policy
  14. Signed Letter having Photo from Bank on letterhead
  15. Signed Letter having Photo issued by registered Company on letterhead
  16. Signed Letter having Photo issued by Recognized Educational Instruction on letterhead
  17. NREGS Job Card
  18. Arms License
  19. Pensioner Card
  20. Freedom Fighter Card
  21. Kissan Passbook
  22. CGHS / ECHS Card
  23. Certificate of Address having photo issued by MP or MLA or Gazetted Officer or Tehsildar on letterhead
  24. Certificate of Address issued by Village Panchayat head or its equivalent authority (for rural areas) Income Tax Assessment Order
  25. Vehicle Registration Certificate
  26. Registered Sale / Lease / Rent Agreement
  27. Address Card having Photo issued by Department of Posts
  28. Caste and Domicile Certificate having Photo issued by State Govt.
  29. Disability ID Card/handicapped medical certificate issued by the respective State/UT
  30. Governments/Administrations
  31. Gas Connection Bill (not older than 3 months)
  32. Passport of Spouse
  33. Passport of Parents(in case of Minor)

Supported PoR Documents containing Relationship details to Head of Family

  1. PDS Card
  2. MNREGA Job Card
  3. CGHS/State Government/ECHS/ESIC Medical card
  4. Pension Card
  5. Army Canteen Card
  6. Passport
  7. Birth Certificate issued by Registrar of Birth, Municipal Corporation and other notified local government bodies like Taluk, Tehsil etc.
  8. Any other Central/State government issued family entitlement document.

Supported Proof of DoB Documents

  1. Birth Certificate
  2. SSLC Book/Certificate
  3. Passport
  4. Certificate of Date of Birth issued by Group A Gazetted Officer on letterhead

When you are going to apply for Aadhaar Card then make sure that you must have below stuff ready,
1.ID Proof (Your ID Proof can be Pan Card, Driving Licence, Passport etc).
2.Address Proof (It could be Telephone Bill, Electricity Bill etc).

Common proofs of identity and address are election photo ID card, Ration card, passport and driving license. Photo ID cards like PAN card and Govt ID cards are permissible for identity proof. Address proof documents also include water – electricity – telephone bills from the last three months.

In case you do not have above common proofs, Certificate of Identify having photo issued by Gazetted Officer/Tehsildar on letterhead is also accepted as PoI. Certificate of Address having photo issued by MP or MLA /Gazetted Officer/Tehsildar on letterhead or by Village Panchayat head or its equivalent authority (for rural areas) is accepted as valid PoA.

Where to apply for Aadhaar card?

You need to go to one of the official Aadhaar enrollment center in India to get your Aadhaar card done.

Use the link below to find out your nearest Aadhaar enrollment center details based on your location:

At the enrollment center you need to fill the Aadhaar application form. At the center fingerprints, photograph and iris scan will be done to feed into database. A temporary slip with enrollment number will be provided as an acknowledgement.

Based on your documents your details will be verified and in case if all comes right an Aadhaar number will be send to your address.

Here you can look up the sample Aadhaar enrollment form:

You can also download the enrollment form here

Apply Online and get Appointment for Aadhaar Enrollment:

If you want you can apply online and take an appointment. Below is the link for online Appointment for Aadhaar enrollment at your nearest aadhaar enrollment center

Note: Online Booking of Appointment for Aadhaar Enrollments has been started on a trial basis at selected Enrollment Centers.

More details about this online Appointment for Aadhaar Enrollment please visit below link,

How to Check your Aadhaar Enrollment Status
You can check the status of your Aadhaar enrollment online. To check your Aadhaar card status, you need the enrollment number, date and time. You can find these details on the acknowledgement copy issued at the Aadhaar enrollment center.

Hope you find this information useful and get your UID soon 🙂

Go Green, don’t leave your chargers plugged in?

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There are certain appliances that suck power even when they are shut off like TVs, microwaves, and gaming systems. Anything with a little light or digital clock on it is sucking power unnecessarily, and that costs you money.

The other set is the chargers and the most popular are the mobile and laptop chargers. Because of our laziness and ignorance, we often leave these chargers plugged in when disconnected from the gadget. I too used to do it earlier. I would leave my mobile charger hanging out of the power socket or leave the laptop charge plugged all night, while the mobile or laptop was not connected. But it seems leaving the appliance plugged in even after its charged is worst than leaving the charger plugged in.

According to a study a mobile phone charger draws an average of 3.68 watts when the phone is on and charging; 2.24 watts when it is on and charged; and 0.26 watts when it is just hanging out in the socket. So leaving your charged phone attached to the charger uses 10 times the energy that leaving the charger dangling would. Now the wastage in terms of cost may not seem to be significant for you, but when you accumulate it across all the mobile users it becomes very significant.

Laptop too is no different. It draws an average of 44.28 watts when it is charging; 29.48 watts when it is charged; and 4.42 watts when we let the charger dangle. However dealing with laptop is little different than laptop, because keeping them plugged in can actually be a good thing – it’s more efficient to use that power to run the machine than to use it to charge a battery which then runs the machine. There is something else you need to consider for laptops – HEAT. The temperature can shorten the battery life. So having the battery fully charged and the laptop plugged in is not harmful, because as soon as the charge level reaches 100% the battery stops receiving charging energy and this energy is bypassed directly to the power supply system of the laptop. However in a normal usage, if the laptop doesn’t get too hot (CPU and Hard Disk around 40ºC) you can leave the battery in the laptop, but in an intensive usage which produces a large amount of heat it’s better to remove the battery from the socket in order to prevent unwanted heating and let the laptop run on direct power. In fact if there is not much of power problem one should remove the battery and run the laptop on direct power to get a better battery life.

So here’s what you can do:

  • Do not leave charges hanging on the power socket when not in use

Written by Sushil Katre

February 6, 2013 at 1:09 PM

DIY make you own blackboard

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Okay, so  Priyanka and I were discussing something and we felt the need for a board to write and discuss. I have been to these art and craft stores in Bangalore and but never seen them having a Blackboard / Chalkboard. These shops generally have whiteboards on which marker pens are used to write. But they do not have the charm of the old Blackboard we used to have in school and college. We searched for Blackboards but did not find shops having Blackboards. I have seen people selling the foldable ones, the one you can roll like a chart, but that’s not what we were looking for.

Finally we decided to make one ourselves. But we did not know how to make one so we resorted to Google Baba. There were two approaches, either to buy Blackboard Paint and paint the board or to make your own blackboard paint. Getting blackboard paint turned out to be a little difficult since its not easily available in shops and you have to get if from manufacturers who sell in bulk. So we decided to make our own blackboard paint. We got all the material and experimented 🙂 I will tell you later how it turned out.

Here’s what you need –

  1. A piece of board/wood which you want to convert into Blackboard
  2. Plaster of Paris powder
  3. Acrylic Color of your choice and instead of Blackboard you can make a Blueboard, Greenboard, Redboard or whatever board you want 🙂
  4. A brush to paint the board
  5. Water
  6. A bowl to mix stuff
  7. Measuring spoon or cup
  8. Stir stick or spoon
  9. Chalk to write
  10. A piece of cloth for cleaning
  11. A sheet of newspaper
Blackboard Paint List of Items

Blackboard Paint List of Items

So, are you all set to make your own Blackboard? Yay!

The recipe is very simple. I had some pieces of plywood lying with me. So I decided to make two Blackboard out of these unused plywood and yes we decided to make it Black so I had Black Acrylic color.

Let’s start with the paint. Plaster of Paris, Paint and Water needs to be mixed together. The combination is 3 parts paint, 2 parts Plaster of Paris, and 1 part water.

First measure and put the Plaster of Paris into a bowl (2 part).

2 Parts Plaster of Paris

2 Parts Plaster of Paris

Then add 1 part water to the Plastic of Paris.

1 Part Water

1 Part Water

Mix PoP and Water

Mix PoP and Water

Mix this well until you get out all the lumps. Once the mixture is smooth, add 3 part of Black acrylic paint. Mix it well until you get a consistent mixture.

3 Part of Paint and Mix it well

3 Part of Paint and Mix it well

The blackoard paint is ready and you should get ready to paint the board 🙂 If you think the mixture is too thick, feel free to add a little water or paint.

Put the board on top of newspaper so that you do not dirty the workplace. Start painting the board from left to light using the brush, make sure that you paint from end to end in a single stroke to make sure that board is smooth once it dries out.

Paint the Board with the Mixture

Paint the Board with the Mixture

I painted my plywood using 3 coats of this homemade blackboard paint. After every coat I kept it to dry and it dried pretty quickly.

Dried Board

Dried Board

While waiting for the paint to dry, cover the paint in the bowl nicely so that it doesn’t dry. Make sure that you do not make a lot of paint as it will harden quickly and will not be usable anymore.

Paint again once the board has dried.

Paint it again

Paint it again

Once you are done with the 3rd cote, leave the board for some time. I know you would be eager to write the first words on the board, but give it some time.

After 3rd Coat

After 3rd Coat

Clean the work area and the tools. Once you make sure the board is completely dried, go ahead and write some nice stuff on it.

Mine turned out to be nice 🙂 I was happy with it and not we have two new homemade blackboards 🙂

Our Blackboard ready to rock!

Our Blackboard ready to rock!

I will be writing more about my experiments here and if you want you can subscribe to my blog to be updated.

Share your experience here when you try to make one 🙂


Solar Cell and Solar Panel Manufacturers in India

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Here’s a list of Solar Cell and Solar Panel manufacturers which I have compiled for a referrence. Incidentally what I read online is that not only Indian Manufacturers but other majot manufacturers in USA and Europe are not able to beat the cost of Chinese Manufacturers.

Sl. No. Name Address Phone Email/web Sites
1 Ammini Solar Pvt.   Ltd. Plot No. 33-37,   KINFRA Small
Industries Park, St. Xaviers College PO,
Trivandrum 695 582
Phone :   04712705588
Fax : 04712705599
2 Bharat Electronics Limited 116/2, Race Course Road,
Jalahalli, Bangalore – 560015
Phone : 080 25039300
Fax : 080 25039305
3 Bharat Heavy Electricals Ltd.   Electronics Division Post Box No. 2606, Mysore   Road,
Bangalore 560 026
Phone 08026998553
Fax :
080 – 26744904
4 Central Electronics
4, Industrial Area
Sahibabad 201 010. U.P.
Phone : 01202895151
Fax: 01202 895148/42
5 EMMVEE Solar Systems Pvt Ltd. 55,6th Main 11th Crosss   Lakshmaiah
Block Ganganagar, Bangalore-560024
Phone: 080-
Fax : 080-23332060
6 Euro Multivision Ltd. Euro House, 2nd Floor, Chincholi   Bunder Road, Behind Inorbit Mall, Malad (West) Mumbai, India 400 064 •Telephone: +91-022-4036   4036
•FAX: +91-022-4036 4037
7 Flexitron 1234, 22A main, 11A cross,   Sector-1, HSR Layout, Bangalore, Karnataka India 60102 •Telephone:   +91-80-25721284
•FAX: +91-80-25721284
8 India Solar Solutions Pvt Ltd A 15/A Mayapuri Industrial Area   Phase 2, New Delhi, New Delhi India 110064 Telephone: +91-9971933844
9 Indosolar Limited
10 Jitendra Motors Pvt. Ltd. Arihant plaza B-88 M.I.D.C.   Ambad Next to Hotel Taj Residency, Nasik, Maharashtra INDIA 422 010 •Telephone: +91 0253   2384432
•FAX: +91 0253 2384632
11 Kotak Urja Pvt. Ltd 378, 10th Cross, 4th Phase,   PIA,
Bangalore 560058, Karnataka. India
Phone : 08028363330
Fax : 08028362347
12 Maharishi Solar Technology Pvt.   Ltd A-14, Mohan Cooperative   Industrial Estate, Mathura Road, New Delhi – 110 044 Phone : 011 –
26959800 /26959701
Fax: 011-26959 669
13 Microsol Power P Ltd 605, 6th Floor, Sapthagiri, SP   Road,
Begumpet, Hyderabad
Phone : 04027766917
Fax: 040 – 27730546
14 Moser Baer Photovoltaic Ltd 43B, Okhla Industrial   Estate,
New Delhi – 110020
Phone 11 41635201 – 07, 11   26911570 – 74 Fax : 11 41635211, 11 26911860
15 NanoBright Solar Plot# 98, Huda Heights, RD#12,   Banjara Hills, Hyderabad, A P India 500034 Telephone: +91-40-42602063  
16 Natural Lights Pvt ltd F – 42 Sevaj farm, Jaipur,   Rajasthan India 302015 0141-2210278
17 NEPC INDIA LIMITED 35, WALLAJAH ROAD, CHENNAI,   TAMIL NADU INDIA 600002 •Telephone: 91-44-28524041
•FAX: 91-44-28524709
18 PaBhuVan Inc. #9-30/2, Near Saibaba Temple,   Ravindranagar Colony, Habsiguda, Hyderabad, AP INDIA 500007  
19 Photon Energy Systems Plot No. 775 –K, Road No 45   Jublee Hills
Hyderabad – 560033
Phone : 04055661337
Fax: 04055661340
20 PLG Power Limited
21 Premier Solar
Systems (P) Ltd
41 & 42, Sri Venkateswara ,   Cooperative Indl. Estate,Balanagar, Hyderabad 500 037 Fax: 040 – 2271879
22 Rajasthan Electronics &   Instruments Ltd 2, Kanakpura Industrial Area,   Sirsi Road, Jaipur 302 012 Phone : 01412203038
Fax: 0141-2202701
23 M/s. Sun Times E-3, Lajpat Nagar – II
New Delhi – 110 024
Fax :011-26839444
24 Solar Semiconductor Limited Plot NO. 254/A,H.No.   8-2-293/82/L/271/A,
MLA Colony,Road No.12,Banjara Hills
Phone:  +91 40 67303000

Fax:      +91 40 67303004

Sales –
Purchase –
25 Surana Ventures Limited 5th Floor, Surya Towers,  Sardar Patel Road,  Secunderabad – 500 003,  A.P. Phone: +91 – 40 – 44665 – 700
26 Tata BP Solar India Ltd Plot No. 78, Electronic City,   Hosur Road, Bangalore – 560100 Phone : 08022358465
Fax : 08028520972/28520116
27 Titan Energy Systems Ltd 16, Aruna Enclave, Trimulgherry,   Secunderabad – 500015, AP INDIA Phone : 04027791085
Fax: 040-2779 5629
28 USL Photovoltaics PVT Ltd 1/473 Avinashi Road,   Neelambur,
Coimbatore 641 014. India
Phone : 04222627851
Fax : 04222628504
29 Udhaya Energy Photovoltaics (P)   Ltd 1/279Z, Mudalipalayam Arasur   Post
Coimbatore – 641 407
30 Udhaya Semiconductors Limited 1/482, Avinashi Road, Neelambur,   Coimbatore India 641 062 Telephone: +91-422- 2627545,   2627003, 9994404511
31 USha (Inda) Ltd. 12/1, Delhi Mathura Road,   Faridabad, Haryana India 121003 •Telephone:   0091-129-5277641
•FAX: 0091-129-5277679
32 VK Solar C-38, Ground Floor, Greater   Kailash-1, New Delhi, Delhi India 110048 91-9718511250
33 Webel SL Energy Systems Ltd Plot No. N1, Block GP, Sector V   Salt Lake Electronic Complex Kolkata 700 091 Phone : 03323578840
Fax: 033-23573258
34 XL Telecom Ltd 335 Chandralok Complex, SD   Road,
Secunderabad, Andhra Pradesh 500003
Phone : 04027849094
Fax : 04027840081


PS:  I realized the email IDs are not getting displayed properly, here’s the excel file Solar Cell-Panel Manufacturers India

Written by Sushil Katre

January 21, 2013 at 4:40 PM

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