I can not discount iranian influence in case of sikh gurus too.
Nice attempt at trolling.
the brahmins of that time hated to touch any white men like portuguese
Ok.
and you are calling them offspring of portuguese.
I am not calling them, it is possible that they are. I could be wrong, you could be wrong, we both could be wrong.
The konkan and chitapavan brahmins ( mugdha godse types ) are brahmins from ancient nagarhara which was an indo aryan city till 1000 ad and when ghazanavi destroyed the shahi dynasty , they fled from there to maharashtra.
nagarhara is modern jalala bad and compare the people of jalalbad with konkani brahmins and you would find the similarity though west asian features are more prominent in case of former.
I haven't heard this tale of Konkani Brahmins inhabiting Jalalabad, and fleeing and settling in Maharashtra a millennium ago. It is possible it happened, its possible it didn't happen.
I think simple DNA testing of Portugese, Afghans, and Konkani Brahmins will be proof enough.
So to add
1. Either there was spontaneous genetic mutation - highly unlikely
2. There were originally Afghan and have been settled in isolated community for a thousand years - possible
3. Foreign genetic mixing - possible
that is why I say that those looking for british, european and scythians for modern day brahmin, kshatriyas are utter crackpots like PN Oak with the only difference that they tend to be on opposite side.
I cannot turn a blind eye to science, hypothesis can be discounted but facts, c'mon.