Dear Abhinandan,

It's nice to know that you want to pursue MTech abroad. The top universities for civil and structural engineering abroad are:

For a Mtech abroad, you will have to apply to the universities with a GRE and English proficiency (IELTS/TOEFL/PTE) scores. 

The universities have a detailed application procedure which includes, sending a REsume, SOP, and a couple of letters of recommendations.

Best of luck!