Try IndiDomains.com. .COM for Rs 485 with free goodies like 15 POP3 Email Accounts, Domain Forwarding, Email Forwarding, Privacy Protection, Domain Theft Protection etc...
Or in other ways, a subtle why to spam forums with irrelevant comments to get leads. You can find dot COMs domain starting from $1.99 or so when a promo is running either at GoDaddy, 1&1, Yahoo or Netfirms. From that starting point price can go up to $15 USD, but the averge is around $10 USD However there are always coupon codes to get the best price, just browse the corresponding threads under B/S/T
Usually it is around 7-8$ and there are extra features that increase the price up to 13$ or so but not more.