Dear Priyanka, In my opinion, both Naukri and Monster have a widespread database. While Monster offers access to international resumes along with the license, Naukri offers it at a premium rate.
Services Offered
As for services, Naukri has located Sales Managers who are accessible all the time, and they personally come to meet you to resolve your problems if the need arises, while Monster is based in Hyderabad and responds to queries over the telephone.
Moreover, it all depends on the license that you opt for—whether you prefer to opt for "n" number of resume views over a specific period or if you want to access unlimited resume views for specific days for a specified period.
Database Uptime and Charges
The uptime of both databases is extremely good. The charges are very competitive, provided you get the best deal. Naukri generally is keen on finalizing a deal as the Sales Manager meets you until the deal is closed, while Monster tries to persuade you over the telephone.
Regarding the quality of resumes, both websites have quality resumes.
I have no idea about Jobstreet, as I have not entered into a license with them.
Regards, M.V. Kannan