Dear Varsha,

   You can visit the sites of the respective colleges/institutions you are interested in, the forms can be downloaded from there ,

Wishing you all the best 

Check the below link

https://www.googleadservices.com/pagead/aclk?sa=L&ai=DChcSEwjU-q3bypHcAhVODisKHWbOBRoYABAAGgJzZg&ohost=www.google.com&cid=CAASEuRo4Ui3H0sqCz1hcd9p-0Cgfw&sig=AOD64_3wMZhOKYDr4mU-reeGU3xY-gkH5g&q=&ved=2ahUKEwistKjbypHcAhVRT30KHQA3Bp8Q0Qx6BAgLEAE&adurl=

Thank you. 

You can apply for gate to get admission in the top government as well as private college for mtech else many colleges conducts their own entrance exam if you tell me the name of the college I can help you better moreover many college give admission according to your graduation results.
Hope It helps