MTNL is only good because of its *True* unlimited plans. I used MTNL 1 mbps plan for years which used to cost me around 750.
But I had to disconnect it since it remain disturbed at a big stretch one time, and customer care is pathetic.
Then moved onto Pacenet, where I paid Rs 930 for 1 Mbps *true* unlimited plan. But now again decided to move since their connection is not stable.
Now, I am planning to move back to MTNL but this time with 3G. Rs 1650 plan sounds too much, but considering the fact that it provides minimum FUP of 200 GB (which may get extend, on request) I think I can pay for that. The speed will be around 2 Mbps. I think this is the best plan for those who want good FUP with good speeds!