What I have understood from the entire scenario is summarised below. Please correct me if I am wrong. Thank you.

Candidates shortlisted for Cat-A = 106
Centre Wise
Lahore = 35
Multan = 06
Karachi = 22
Islamabad = 31
Peshawar = 07
Quetta = 05

Interview schedule (as per interview program no. 11)
Lahore Centre:
35 candidates from Lahore centre and 6 candidates from Multan centre.
22 June 2020: 6 candidates
23 June 2020: 10 candidates
24 June 2020: 10 candidates
25 June 2020: 10 candidates
26 June 2020: 4 candidates
While one remaining candidate has been called for a personal hearing on 15 June 2020 at Islamabad centre (as per interview program no. 12)
Karachi Centre:
30 June 2020: 4 candidates
01 July 2020: 9 candidates
02 July 2020: 9 candidates
Islamabad Centre:
06 July 2020: 9 candidates
07 July 2020: 9 candidates
08 July 2020: 9 candidates
09 July 2020: 4 candidates
Peshawar Centre:
14 July 2020: 7 candidates
Quetta Centre:
20 July 2020: 5 candidates
Note: Schedule of Quetta Centre will further be adjusted as per availability of the flights