which course is better M.TECH from IIT or M.S. from abroad and could you suggest some good universities for M.S. I completed my B.E. in IT

If you are getting admission in good University abroad like, MIT, Standford then you should proceed for MS, otrherwise it is always better to join IIT rather than joining some 2nd grade University in US unless and until your ambition is to go to US irrespective of the University.

both are like same if you can get admision in good unversty in abroad then MS is better and if you get admsion in Mtech in like IITS then it can be better