Any chances for me in top 10 economics program? I am bachelors of commerce from a not known university. I am going to take economics masters from India's top institute. I will take higher math courses as well. What else should I do to get in top 10 economics program ? (Are there any chances for me?)

Also can you please suggest some masters economics program which enrolls commerce undergrad?
(If I had more rep then this probably would have been a comment not an answer, sorry).  That is a very hard question to answer without you providing much information.

Generally getting into a top 10 economics program is already a semi random process because so many applicants are so well qualified.  It requires a high GPA in hard courses, good recommendation letters, etc...  That being said, there are a lot of students from India who end up placing very well.

A website where you might get more opinions is http://www.urch.com/forums/phd-economics/ .  They have a general format for how to submit your profile, look at a few and check it out.  Might help you know where you stand (They also have old archives of student profiles with results).