Hazy patch with huge comet tail
As you see from the app, there are no hazy objects there, and in the light polluted Mumbai skies, deep sky objects would not be easily visible. There are no bright naked eye comets visible at the moment.

Satellites appear like moving stars, not hazy. The most likely hazy object would be a high cloud or part of a contrail, perhaps lit by the light of the city, or by the first light of dawn.