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.

Thanks…