i'd suggest to always go for the best thing you can AFFORD when it comes to safety of ur life.
i couldn't afford the penguin (taiwanese) helmet, it was looking nice and was costing 2000 rs.
but i still went for another good brand, UNEED (taiwanese too) cost me 1150 rs, but its worht the money, already helped me save my face and head from injuries in a recent accident, where i had a head on collision with the ground.
dont go for the cheapo 350-500 rs helmets, atleast get one that cost more than 1000 rs.
if you can buy a 35000+ bike, you should be able to get a 1000 rs helmet. never compromise on ur safety and life. YOU ARE WORTH THE MONEY!!