You being a fresher and not getting responses; I would say start with evaluating your CV. Think about how you can make your CV stand out from other candidates in the market. mention all the side projects that you did along with your semester projects. Someone else also mentioned, do attach a cover letter summarising your work, and how you think you will be the best candidate for the job. I believe recruiters use some kind of software to filter out CVs. Do make sure that you mention all the key words from job listing in your cover letter.
- keep calling recruiters and also, keep following up on regular basis.
- approach your college alumni.
- get in touch with your seniors, batch mates. References work much faster than going through recruiters.
I do not live in India anymore so not sure how much of the process has changed. Does walk-in interviews happen? Try to attend as many as possible, even if it doesn't click it would still give you an experience and will make you more confident for following interviews.
Lastly, don't get distressed, never doubt yourself and maintain a hobby to keep you distracted. Good luck!