Assam Down Town University — no response from my university

I am student of adtu online. I enrolled for mca in july 2014 but from past one month i am not getting any response from university and support.

I tried calling all possible and available numbers email available online or on which i was contacted before but never got any response.

The site (www.adtuonline.eedu.in) i used to login in my account is not available anymore and giving me 404 error.

Please do the needful..