Just as an FYI..I was on Rapid Advantage 1999 which had an FUP of 150GB. While I was checking out competing ISP plans in the area, I perchance took a look at airtel's site as well. To my surprise, they were now offering a plan of the same name and cost, but, with an FUP of 200GB. Gave them a call, and they changed my plan to have the new FUP. I wish they had done this automatically, without me having to call...If anybody else is on the plan with the previous lower FUP, you could try giving them a call and getting upgraded as well 
They seem to now match ACT/Ficus on data cost 200GB = Rs. 1999.
They seem to now match ACT/Ficus on data cost 200GB = Rs. 1999.