Hi,

Gate score is considered for the admission to Mtech course,PhD courses and also considered by PSUs for the recruitment. You can also opt foreign countries such as Singapore and Germany for pursuing higher studies using Gate score. You can choose MA after B tech. The eligibility of MA courses varies from institutes to institutes. Some of them admit students based on merit basis while other conducts entrance exams. You have to go through the eligibility criteria of the courses in the respective website of colleges. To know your options after Gate you can check the following article

https://www.google.com/amp/s/engineering.careers360.com/articles/gate-qualified-multiple-options-for-you/amp

All the best.