Hi i have opted for a 512 plan by airtel costing 1499, i am living in noida ,does anybody have the same plan ..can u give me the feed back ... i was a user of 999 unlimited plan the speeds used to go 30 kbps and 50 + kbps in the nights,wanted to know if the speeds double in the night with his plan ..if yes then the modem setting have a downstream of maximum 576 kbps ...how do u change that ..chaoo