Shiksha.com — Breached my privacy. Distributed my contact information

From last few days I'm getting calls, sms, email every hour from Universities all over India. I signed up to Shiksha.com few days back and they distributed my contact information all over India.and there is no option to delete account or deactivate. Please look into the matter and help me deleting my account from that rubbish website breaching consumers privacy just selling data of students.