If you could get both together for Rs450 max., it would be a sweeter deal. What is the nature of the place you are buying them from? If it is a smaller 1-room shop, try haggling.
BTW, which models are you buying.
Well, I have only 1 or 2 New Ray Models. Here is my Citroen C2 from New Ray. I had to shell out Rs210 for it way back in 2006-end at a local grocery store.