I've BSNL BB UL combo 750 plan in Chennai.
I have checked the speed using speedtest in computer , it is showing 500 Kbps( small 'b')
Where as when I set up wireless connection using D link wireless router and checked the speed in my mobile it i s showing 756Kbps.
Is it really the case or there is some problem with my observation, I don't have laptop, so I couldn't check the wireless speed through computer.
Once I get hold of a laptop I will check the same and update you the details.