Since I work in the 2 wheeler industry let me throw in some perspective.
-Ride quality + comfort + least maintenance : go for Yamaha entry level bike or scooter. Honda is close second. Whatever floats your boat and riding hunger. Only advantage would be your wife can drive the scooter later.
-EV: low running cost + very good ride quality + dashboard tech (map navigation + call receiving) + great torque and power delivery. Only Ather qualifies here. Rest are still in learning + development phase. Downside for EV: arranging the charging infra + range anxiety + battery will have to be replaced some years down the line so drastic drop in resale value as well.
-ICE : good part is there is a definite distinct feel to riding an ICE + geared vehicle which I suppose you ain’t much inclined for looking at your expectation list. So you can go for a entry level bike between 100-160cc.
You would still have to put aside between 1-1.3 lakh (on-road) so better buy a long term bike so that you can still carry on riding your 2 wheeler in Bangalore traffic + get a car later on which your wife can use for her office. Bangalore traffic bike riding in current infra situation demands regular maintenance so better go for reliable + good handling experience bike/ scooter.
Go with your gut feeling bro. Let us know what you zeroed in later on.
Cheers