In my area, Airtel recently upgraded their network to 1 GBPS. Currently I am on an old plan of 1099 that offers 40 Mbps upto 300 GB with Data roll over and 300 INR permanent discount. So my bill comes upto 942 including taxes and because of data roll over, I usually have 500-700 GB depending upon my usage each month. Upon inquiring about getting my speed upgraded they told me that all the retention discounts that they have been offering will be removed from all accounts. This was instructed to them last year and slowly all retention plan will no longer work. Their Delhi plans are not that great and new plans don't have data roll over.
My line stats for downstream speed changes from 50 mbps to 64 mbps.
Any new plans in Delhi circle that are good enough because once 300 discount gets removed the plan will cost around 1200.