We can host .com, .net, .org, .in, .biz, .us, .ca, .cc, etc. as well as domains from anywhere in the world. However we cannot host domains that do not allow modifcation of DNS to point to our name servers. .tk domains are one example of a type of domain we cannot host.
Any domain that you purchase at Mumbai Hosting will automatically have its DNS set to work with our name servers, ready for your hosting account (if you order one) as soon as the DNS resolves.