Interview For State Civil Services During Lockdown

I am currently in South Africa but I appeared for the BPSC exam before lockdown. At the moment Indian airspace is closed and Vande Bharat flights ply once a month from South Africa. There have been only 3 flights from South Africa to India, one chartered plane, one air India, and one south African airlines to re-patriate their citizens. Even in this situation, BPSC is taking interviews for gazetted class jobs. I am very sure my interview will be called in July and considering no flight, 15 day quarantine it is literally impossible for me to reach for an interview in time. The concern is BPSC gives 15-20 days notice before the interview. Can someone please suggest how should I approach the BPSC. Is there any legal procedure that denies them to conduct an interview while in lockdown. I have already dropped to BPSC a mail providing details like visa, residence proof of South Africa, admit card for the exam, passport, etc. but I haven't received any response.