Hi Mrityunjay,
If it's a new project without any existing database. You could use Code First to a New Database, and the following is an article about ‘Code First to a New Database’
for your reference.
https://msdn.microsoft.com/en-us/data/jj193542
If you have an existing database. You could use ‘Code First to an Existing Database’. And the following is an article about ‘Code First to an Existing Database’
for your reference.
https://msdn.microsoft.com/en-us/data/jj200620
Besides, these articles also provide different Migration method.
Best regards,