If somebody is from Delhi. I would recommend "ANI Broadband Services".
ANI is good in terms of plans ...but only issue dealing with the local service guy. Most of the time he is an ex cable guy or some sudo technical guy doing last mile services. So any thing apart from physical line damage, is virtually a roadblock. As he will never understand the problem.
Hum is area se pehle hi kaafi saare MTNL/ Airtel ke broadband connections utarwa chuke hai
I think u can get it . Bsnl can never be trusted