I know it is hard to believe but once I traveled to Varanasi,I got 2MBPS(yes 2
mega bytes per second) of download. Phone was getting constant H+ signals in open areas and according to a bsnl advertisement network there supports upto 21mbps so technically I was getting around 16mbps speed.
Here in my city Mirzapur it gives upto 500KBPS when in gets "H" signals but unfortunately here it keeps toggling between 3G and H mode.