.co.in domain is good for optimization or not , i mean it will rank in google.com ?? Domain listing 16,830,000,000 is for .com 4,310,000,000 is for .net and only 7,120,000 for .co.in can i buy .co.in domain or not ???
your question is not deal in search engine ranking or how they're will treated your site, instead its deals on user behavior. If you have a choose, i recommend you to buy a .com domain because its well known and easy to remember by ordinary users. hope you get my point...