so you can apply for internships through various sites :
Internshala : Internshala (http://www.internshala.com) is an internship portal to help students with their quest for a meaningful internship.
LetsIntern : (http://www.letsintern.com/). It is a great platform bringing the three talent stakeholders in India – students, colleges and companies on a single platform driving interaction and meaningful value creation.
internworld.in : (http://www.internworld.in/) is the largest internships website in India which has a number of internships, freelance, part-time as well as full-time job opportunities.
Also try searching for various companies and keep on sending them your resume for internships. Meet people from this sector , gain more knowledge .
As I know you are an MBA student and looking for internships, I will try to suggest you some good organizations where you can start your internship and launch your career.
SONY – Sony recruits for its global internship program which offers good opportunities for undergraduates, masters and MBA students.
TOYOTA – Toyota usually recruits MBA students every summer for its summer internship program. Students get the advantage of opportunities in marketing, strategic planning and finance.
COCA COLA – Coca Cola also offers internships to MBA student in public relations.
All you have to do is show some determination and prepare yourself for the interview, as, MBA internships are the source of valuable lessons and work experience.