Need information on Appointment dates

Hello Team,
I am trying book appointment for both OFC and counselor appointments. I am able to choose dates for OFC appointments for all locations (Chennai / New Delhi / Mumbai/ Kolkata / Hyderabad ). But, after this when I move to counselor appointment I am getting message " currently no appointments available" till October month for all locations.

It will helpful if we could have the information when the counselor appointment will be opened and available for booking.