Hello I am from india and i want to buy a domain with aco.in extention can any one help me thank you ajey
You need to be a private or Govt. educational organisation or institute to register this domain, Its like the .edu domain in india! Check this : http://www.registry.in/ Cannot be registered by an individual for personal purposes!
for these tlds ac.in :: Academic edu.in :: Academic res.in :: Indian Research Institutes visit this http://www.registry.ernet.in/