Thanks for the question @ananth.krishnamoorth . Server runtimes on Anvil shared-hosting plans (Individual and Dedicated) have a 1GB burst limit on memory. It depends on what kind of processing you are planning to do, but I would say it likely would not work out under those plans. If you were on a Dedicated plan we could of course select a larger amount of storage space for your needs.
May I ask what you are trying to do with the 1GB csv file? Perhaps there is a way you could avoid processing the whole thing and save on some memory.