I AM USING MTS ULTRA USB DATA CARD.
THIS DATA CARD IS GOOD TO USE IN DELHI NCR.
SPEED IS IMPROVED AS EARLIER THIS SPEED WAS TOO BAD.
SERVICE FOR THIS MTS IS ALSO NOT SATISFACTORY.
YES FOR SOMETIME IT TAKES 5 MINUTES OF DOWNLOADING 100 MB FILES.
THIS SPEED WE RECEIVE FOR FEW HOURS IN A DAY AND THIS GOES SLOW DOWN.
THEY HAVE VERY GOOD OFFER IN DATA USING BUT CAN NOT USE THAT DATA CARD
IN PUNJAB IF I HAVE PURCHASED THIS FROM OTHER STATE.
THIS IS MY REVIEW YOU CAN READ MORE TO KNOW.