Choosing Racket

Thank you for your answer but i m living in india so what should i do for that?

GKI offensive XX is a decent bat for a beginner. GKI Euro xx should be the next choice. Do the pingskills rook and other products not reach India?

No the products of pingskills not reached in India.

We sell online through our store to anywhere in the World. The postal service to India is not as reliable as to some other places so we need to use a more expensive postage option when sending goods to India to help with this problem.

I'd say the first step is to do a lot of research as far as the details of the paddle. The thing is, even if you aren't playing in tournaments or at a professional level, it's always fun to dive deep and get something that you put together yourself. If you're not interested in learning how to make your own paddle, but do want to learn more so you can make a better informed decision, check out this beginner's guide to choosing a table tennis paddle. Yes, they call it "ping pong", but they have some pretty good information there. 

Anyone know if the Stiga Pro Carbon racket is good?

not for a beginner ( carbon)

How much should be the lengh of racket??

And the length of sponge also??

An average racket for good spin and control??

 How much should the thickness of sponge and rubber be in tt racke for a attacking players. ..???

a very good player 2mm, 1.8mm is good 

Donic or butterfly?

Both are awesome...

Do professional player use sponge???

Yes they usually use 2mm or thicker sponge.  The combination of the sponge and the rubber is allowed to be a maximum of 4mm.

what is a anti spin rubber