i will say the babys aunt
The word used to call husband in Malayalam is "ഭര്ത്താവ്" (Bharthavu).
bharthavu
You would call your aunt's husband "uncle".
You are your aunt's nephew and therefore also her husband's nephew. Her husband is your uncle.
Bharthavu (When addressed, it is as 'ചേട്ടാ!')
dump
In Malayalam wife uses the word "ningal" to call her husbant
Your mother's sister is your aunt. Her husband is your uncle.
You can call him by his first name but if your comfertable and your aunt says it's okay, call him uncle whatever (: lol
ammayi
The children of your husband's sister are your nieces or nephews, and you are their aunt, just as he is their uncle.