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I don't know much about volumes...But exchange is Bitcoin-india
you can visit the site here. They have top 25 coins listed as of now.But they there are adding other coins as well at a faster rate.

https://bitcoin-india.org/

Coin Marketplace

STEEM 0.16
TRX 0.16
JST 0.031
BTC 59005.68
ETH 2516.43
USDT 1.00
SBD 2.48