Finally HTC started rolling out Android 2.3.5 Gingerbread update with HTC sense 3.0 for HTC desire HD smartphones in India. Today when I checked my Desire HD, I saw System update message on the phone, finally. HTC has also announced Sense 3.0 update for its smartphones, Desire HD and Incredible S.
The software update is deployed OTA (over the air) in waves, so HTC Desires HD owners should expect to receive it automatically on your phone. You can also manually check for the update simply go to Setting / About phone / Software update / Check for new software.