Hi Harini.

After B. Sc you can go for M. Sc. IT if you wish to work in core IT domain or else you can study management if thats where your interests are inclined to. There are online and offline short term courses and certifications that you can take in data science. programming, software testing, etc.

But if you would like to work then B. Sc. IT has great potential in terms of job opportunies. You can start bu preparing you CV enlisting your skills and strengths. Browse the companies you would like to works in. IT is a field no company can do without. Shortlist the companies. Go to their career page on their websites and look if they have vacancies matching your interets. In the meantime hone your skills bu taking up internships of short duration. On job experience is the best. You can find ample of paid and unpaid internships on sites such as Internshala.

You may also take up some short term online courses relevant to your interests. Professionals with knowledge of Cloud computing, data science, machine learning, AI, etc. are high in demand. 

When applying to companies, remember there are product based companies and service based companies, choose accordingly. Be well prepared and turn up for as many interviews as possible. In job search, one of the most important factor is networking. Attend workshops and seminars, sign up to LinkedIn, amke connections with professionals working in your domain, ask your seniors and friends if their company has any opening.

All the best.