This site is created and maintained by a retired teacher, at his own expense and intiative.
The creation, maintenance and hosting of this site is however not free (gratis). Your financial support can help me in this effort. Your donations will help me do more and help more people to learn more.
How to donate ?
If you are in India, and have a bank account here, your account is most
probably linked to your mobile phone.
If you have not done so already, you can install the app. called
UPI app. on
your mobile phone connected to your bank account. There are many popular third-party mobile phone apps built over UPI app. (aka BHIM-UPI). The UPI app.
is a creation of the Govt. of India. It is very easy to use (just see these short videos), and has no cost overheads (unlike bank transfers, ewallet, Paypal, credit/debit cards, etc.). Everything is official, transparent, recorded and traceable.
Just install any UPI app.
on your mobile phone and make a transfer. (details will be given to you, if you ask me).
Send a mail to
email@example.com as soon as you make any donation, so that we can thank you personally.