I actually buy my protein from Man Matters and it is very economical https://manmatters.com/dp/26167022, 1 kg protein costs about 1899, there is usually a promocode of 10-20% off, MM10/MM20 and then I pay via cred pay https://giskaa.com/cred-man-matters, just have to enable in reward section in cred app before paying and I order it from the app so I get another 10% cashback, generally I would get 1 kg protein in for less than 1k sometimes even around Rs500 when there are good offers, they are also good quality protein, I think this is a loophole not many people use, I dont know how long this offer will last.