Changelly was found way back in 2013 by Minergate. 2015 was the time when Shapeshift(A similar service) was found.

Changelly was founded in the year 2013, but they officially began their cryptocurrency trading in 2015. And yes the group behind Changelly was Minergate but as of now they are no more associated with the currency operation of Changelly.
Source

If so, how are the fee and the account limits? Is the liquidity even comparable to an exchange like Wazirx? Let me know if you have used it.

I have not used it, but the fee structure is quite competitive, the maker and taker fee is 0.1% only at the basic level(in wazirX it is 0.2%). Even the withdrawal fees are better, 0.0004 BTC, at par with Binance rate, obviously better than wazirX(0.00006 BTC).

The trading volume in wazirX is around 2.3 million USD whereas in Changelly Pro it is 2.8 million USD.

Thank you.

#affable