Today I went to ADTV office to get my remote replaced. I got a chance to talk to a technician there. He confirmed that ADTV has already started testing HD channels. He said that 4 HD channels (all videos) are currently broadcasted for testing purpose. The testing is happening at the ADTV office at Technopark TVM. He told me that I can go there to watch the testing if I want. They are aiming to launch it by Onam it seems. They may be the first in India to provide HD through cable