Information Technology

Hello Ritika,
First and foremost thing to remember is that failure is no crime. Lots of people have failed in their school/college career and still went on to become successful.
Begin with analysing reasons of failure. Definitely, you were not able to perform as per expectations. But you cleared other papers. So there is nothing wrong seriously. Just concentrate on studying the subject in which you have failed a little more and you will achieve success.

Courses to do after completing B.Sc in IT:
Going for M.Sc after finishing B.Sc is first and the best option. After M.Sc, one could also go for Ph.D program. Another course that one could go for is MBA. It will instil business and management skills, this will help a candidate to enhance his/her qualifications and value. If it is legal education that one is interested in, one may go for LLB course.

There are very few state entrance exams for MCA, mostly MCA exams are either college or university based. Maharashtra and Tamil Nadu conduct there MCA entrance exams.

Hi,
If I anticipate your question correctly then H&N training would help you to get a job as support technician/L1 engineer, etc. Matter of fact, you shouldn't expect a big return in order to earn and remuneration, but it could make a path to move forward. From a job perspective, after doing a Diploma course in H&N there is a limited scope, but in contrast, if you have the ambition to set up your own business then you may expect a lot better than any job.