COMPUTE is an annual Indian conference supported by ACM India and iSIGCSE that is focused on computing education. To enable better collaboration between Indian and International community of CS education researchers and practitioners, COMPUTE 2023 is being held at HCU (which is next door to IIITH) right after ACM CompEd 2023, with one day overlap (last day of CompEd overlaps with first day of COMPUTE and is held in IIIT Hyderabad campus). You can find more details about the conference from their website: COMPUTE 2023.
It is a separate conference and hence you need to register for it separately, you can find the registration page here: COMPUTE 2023 Registration.