Hi Mohini,

For an MTech degree abroad, universities require a 4-year bachelors degree to be completed by the aspirant. 

additionally, the aspirants have to take GRE and an English Proficiency Test as part of the admission process.

Please visit the links to know more about the Civil engineering abroad https://studyabroad.careers360.com/articles/top-engineering-specialisations-in-world

https://studyabroad.careers360.com/articles/top-civil-engineering-colleges-in-usa

hope that clears your doubt. Do revert if you need more information.

Best wishes