Srilipi is the best Telugu typing keyboard.
desktop
you can use any online tools..like www.swecha.org...
ganesh
There are a number of websites with free software that will help one practice typing. These include Type Racer, Typing Web and About One Hand Typing and Keyboarding.
There are many free typing software for children. The top companies that develop this software are : Ultrakey, Typing Instructor For Kids, Type to Learn or Ainsworth Keyboard Trainer.
You need to install a typing software like typing tutor .Or google "online typing tutor" and you will find free online typing sites. pinkgal333:dance mat typing is a good website
There are some excellent resources for kids learning keyboard typing. Some include programs such as: Software 2013, Keyboard Typing for Kids or free programs at Free Typing Games dot net.
NHM,alzagi,Tamilnation,...
You can download Telugu songs for free at Galatta. You can find all the Telugu songs you want right there in one place that you are looking for and more.
Yes you can get certified for free in typing. You can find them online like, http://www.ftwinnovations.com/typingweb/typing-certificates-are-now-free/.
No
alfatyping.com has the best free typing lessons.