I suggest you search for "cost of living in Malaysia" and compare the indices for Malaysia and India. I suspect the cost of living index is slightly higher in Malaysia so do the math with what you get now and multiply it by the ratio of the indices to see what a comparable salary in MY would be relative to your IN salary. You'll probably have to factor in additional things like transportation, room and board, phone calls back home, internet subscriptions, and occasional travel back home to get a realistic idea of the difference you should be looking for to make working abroad worth the sacrifice.
I just wanted to give you an idea of where you can find information. Nobody here is going to tell you whether or not MYR 4500 per month is sufficient for you. You know how you want to live, figure it out.