M.Sc. in IT is a three year PG program which emphases on software development, computer programming, software tests and computer security.
Many organizations in government sector appoint the M.Sc. graduates in IT for application development and cyber security.
They can also work in govt. departments which focus on the development of IT industry.

There are many job opportunities available in the Central Govt. Department.
Department of IT in the Ministry of Communications and Information Technology offers Scientist job for the M.Sc. graduates in IT. It is in control for assisting other departments in the promotion of E-Governance, E-Infrastructure, E-Medicine and E-Commerce.

National Institute of Electronics and Information Technology, New Delhi beneath the department of Information Technology employees these graduates for the post of Consultants, Junior Consultants and Senior Consultants to ensure Cyber Security and analyse Traffic Flow Analysis.
Numerous opportunities are available for these graduates in the telecom sector. You can find many posts in BSNL and MTNL.

If you want to work in other departments apart from IT and Telecom, then you can qualify various exams conducted by Union Public Service Commission and Staff Selection Commission. You can write Combined Graduate Level (CGL) Exam conducted by Staff Selection Commission to get into different government departments.

You can similarly find job opportunities in the railway sector. RRB conducts various exams for recruiting these graduates to suitable posts
You can also join the Indian Armed forces, then they can write National Defence Academy exam or Combined Defense Service exam.