I am a beginner i want some lipo batteries and charger for my robotics project but i have no idea which lipos are good and where i can buy from so please can some one help me .

I am using the Wolfpack 2200mah sold by RC bazaar for some time. They are light weight. Performance is moderate. 
But you can try this. Genc ace are really good.

https://rcmumbai.com/catalogsearch/result/index/?cat=&&q=gens+ace

Wolfpack lipo's from rcbazaar are economical. I have used them with no issues.

Haiyin  lipos I bought from Kinetic hobbies are very good ;even after years ,but sadly they don't sell it online now. But do visit their shop. Their products are really worth buying.
http://www.kinetichobbies.com/shop/onbo-2s-7-4v-460mah-35c-lipo-battery/

HI

I have a almost new lipo, used it for 5 times, Astra lipo 3300mah 35c 3s 11.1v.
Please whatsapp me (9886666578) for the price

I would personally never recommend lipos from rcb...they are cheap and that's it..not long lasting..I think best batteries in india on a LHS are tattu available on Rcm..
But they charge too much to ship batteries

I have used wolfpack lipos from rcb and I would recommend them as they are value for money....if you can get Gensace/Tattu batteries cheap from someone coming from US then its great....I got Gensace/Tattu this way, though yet to put them into use...waiting for my charger to arrive..