Visvesvaraya Technological University — Otp not received in my Nepal's number

I had entered my Nepal's number inorder to signup the eddts.I wanted to apply for online migration certificate.However I didn't received the otp yet.country code of Nepal is +977.however in eddts signup portal only 10 digit is allowed.So I had entered my Nepal's number without any country code.Now when I tried to resignup it say as this usn is already registered.Please suggest how can I get otp pin in my Nepal's number and proceed further.