My daughter has received her British citizenship (she was born in UK, and her mom received ILR) recently (14/07) and her British passport is on its way (wow!).
My wife and I (Indians still) wish to travel to India... For that, can my daughter get an Indian e-visa without surrendering her Indian passport. The only reason for this is that it would take days and weeks to get an appointment to surrender Indian passport, and we will miss the holidays window!

So ideally, we wish to apply for her Indian e-visa using her British passport, travel to India using her British passport and Indian e-visa, return to UK and then surrender her Indian passport.
PS: We intend to return to UK within the 3 months grace period allowed by Indian government.
Regards,
Amit