According to most scholars and historians, the Prophet (peace be on him) was born on the 12th of Rabbi-ul-Awwal (the 21st of April according to the Gregorian Calendar). I just noticed, that this year, the 12th of Rabbi-ul-Awwal falls on the 21st of April again
indeed. Subhanallah.
but the thing is our Prophet Mohmmed(SAW) born in saudi arabia on 12 Rabbi-ul-Awwal but what was the date in south asia it must be 11 or 10 Rabbi-ul-Awwal.