hi,

see after b.sc courses you may learn 6 month web development training course, you may work in startup companies. however if you are ambitious and want to come in software engineering field, you may give lateral entry entrance test like jelet, or any other state wise entrance test, you can join btech course from second year of studies in computer science engineering department.

however some of the top institute which provide software development course training

cmc academy

national institute of information technology