I am living in a high rise apartment at Gurgaon and recently I decided to go digital with dishtv HD. I got a good online deal and I paid by credit card. Installation guys turned up next day. They tried all three balconies of my apartment but could find signals. My apartment is on 3rd floor and there is a 8 floor tower in south east direction where most of the digital TV broadcasts come from.Installation guys suggested to install dish on terrace of tower but RWA refused to allow any installation on terrace area. Bunch of crooks were favoring local cable provider. Finally dishtv agreed to initiate refund process on my request. After this I did some search to figure out alternate options. I got list of satellites used by various DTH providers in India and mapped them one by one on my apartment using google map and found that tatasky is the option for me.
you can use online tools like sat-direction.com with following table to check feasibility of signals in your house/apartment
Provider Satellite Position
Dishtv NSS6 95.0°E
Videocon d2h ST2 88.0°E
Airtel SES7 108.2°E
Tatasky Insat 4A 83.0°E
Sun direct Measat 3 91.5°E
DD Insat 4B 93.5°E
Reliance Measat 3 91.5°E
Here is a sample screenshot of TATA SKY Insat 4A position wrt to my apartment
You can also use tools like satellite director on android mobile phones. here are few screenshots of this tool.
