Ok Guys I have come up with you solutions for my problems based on my channel needs and my subscription based on Mega South HD Pack with TS:
I do have 2 TS STBS (1 - TS HD+ & 2nd TS+) and I am subscribing to South MEga HD pack which cost me Rs 7,500 at current scenario which means per month i need spend Rs. 625 & secondary connection @ Rs. 200 PM.
At this point of time if I opt for Airtel HD Recroder:
Cost of HD Recorder: Rs 4990
Less: 2 months free subscription of south mega pack which exceeds my channel needs: Rs. 1250 (2 months of South Mega HD pack Sub of TS)
Now i have bring down the cost of the STB to the 3rd month to Rs 3,740 (4990 - 1250)
I would subscribe the following with Airtel to fulfill my needs:
I prefer to go with South Max - Rs. 150 PM
HD PAck - Rs 175 PM
Sports Pack - Rs 125 PM
English News PAck - Rs 30 PM
Total Monthly Airtel Subscription - Rs. 480
Total Savings per month - Rs 625 - 480 = 145
Total Savings in 26 months = 145 x 12 = 3770
Virtually the STB cost can be nullified by the 28th month if i go with Airtel...This savings i had shown to you by not subscribing to Annual pack of Airtel offerings if opt for that i belive with in 2 yrs from the use i can nullify the cost of Airtel HD Recorder STB....
Time is not permitting me to show the calculation savings if i go for D2H....