Yes the pandals in mumbai has come down, but not the one in Hyderabad. Those MoFu used to play the song so loud that my child was unable to sleep. (when she was a baby). Ever since I have hated the concept of having loudspeakers in religious functions.
There was a huge janmasthami crowed right outside my house in Powai. (outside Galleria) Pretty high one too. I watched it for some time before I lost interests
Sadly Navratri celebrations seems to be dying in mumbai but seems to be picking up in other parts of India. Same with Holi. In fact Holi in north India is/was awesome.