Mahanagar Telephone Nigam [MTNL] — No network connectivity

I live in Central Delhi and there is no network connectivity here since last 3-4 days, unable to call or text. I use it to receive OTP mostly but it has been a pain. Earlier I used to receive text by moving around towards windows or doors atleast but that too has gone now. Pathetic service. I cant even port even if I want to as am unable to receive a single bar of network. Kindly check if your towers are working or not.