forgot my scdl password & there is very complicated service for contact

i am a 2008 batch PGDBA student of scdl. i forgot my password & i wanted to contact with the scdl person.i get the no.from scdl site ie 02066211000  but i have failed every time to contact.now i m very upset by scdl service.One main problem is that i have resigned from my job & mail id which is already given to scdl was my professional id & even i want to change that mail id but how can i change that because i forgot my scdl password.
pls help me out ASAP.