Long story but hear me out.
4 years back I travelled from India to Nepal via Air. Indian Citizen. Bangalore - Delhi - Kathmandu route. Passport was stamped with Departure stamp in Delhi and was subsequently stamped with Arrival one at Kathmandu. Spent about 5 days in Nepal and came back to India(Bihar state) via road. Now this was super early morning after an overnight bus journey followed by a cab journey with my friend's extended family, with all of us going to my friend's house in Bihar. I remember with my sleepy eyes that no one asked for Identification at the checkpost and the cab driver just did the needful by informing the check post at the Indian side about the occupants. Stayed in Bihar for a week and back to Bangalore. Now after all these years, I'm applying for a tourist visa to Thailand and unsure if lack of entry stamp to India/Passport database not being updated will cause a concern at Immigration counter while leaving India.
I know Indians dont need a visa to visit Nepal but this specific instance has gotten me worried.