Sorry, to say you but you are not eligible to apply for the M.Tech In Aerospace Engineering in USA after B.Tech in ECE in India, because you don’t fulfill the eligibility conditions which are as following:

Eligibility criteria:
The applicant should hold bachelor's degree in (B.E/B.Tech) or any other equivalent branches of engineering with good academic record from any recognized institution.

Other requirements:
TOFEL
GRE score
Letter of recommendation
Good communication skills