Bsnl micromax 300g modem
No 3g network "no service"

Hello my name is saurabh and i live in allahabbad up i had purchased a micromax 300g modem for 4000rs and also a 2g sim with 274 plan at date 28th jan on that day and whole night i got a great speed look the link http://www.speedtest.net/result/698127110.png

but now it is not catching any 3g signal and the the dislplay shows no service for 3g please tell me the complaint no. and if any one from allahabad facing the same problem please tell me so that we can know

i also have a doubt that isnt bsnl had changed some settings that 2g sim will not get 3g network or something like that please let me know thanx hoping for positive response thanx