I am a co-owner of the following chatrooms:
Ragamalika: for general chat about Indian classical and light music.
If you have some music from the Indian subcontinent that you'd like to share, feel free to drop a link to it in this room! We also run a weekly hangout session. It's been quiet for some time, but all are welcome to join :)
Sarvalaghu: for discussions about technical aspects of Carnatic music.
My own expertise, little though it is, lies in Carnatic music, but we wholeheartedly welcome discussion on north Indian classical music (alias, Hindustani music) as well.
If you just want to have a chat, unrelated to the topics of the previous rooms, feel free to drop a ping in Kalpana swaram. :)