Its one of the better modem available in the market. I totally disagree with rajeshs comment. D-link is the only company in India to give a life time warranty on its product. 56KBps external modem also comes with such warranty.
As per the cost its not so expensive compared to its warranty period and service they provide. I personally know the technical staff of D-link india. They are very helpful & informative.
Finally a brief wrap up :
Cost : less than 3000 warranty : life time and support : excellent
so Mr. Rajesh Kaun Rahega Door Is se,