بسم الله الرحمن الرحيم
(Fatwa: 1076/1076/M=08/1435)
It is correct to give the azan of Fajr after five or six minutes from starting Fajr time. However, it is better to announce the end of Sehri time five or six minutes before the time of Fajr starts so that people stop eating Sehri five minutes earlier as precaution.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
