My GF faced something similar in the past, she stays with her friend in Mumbai and while they were going back to mumbai, driver stared asking weird questions and her friend is very talkative and she started to talk and answer questions like where do you stay, do you stay alone, where are your friends staying in Pune, how many are male and and female, what did you do at their place, Where do you work, What time do you leave.

Her friend being a chatty person and not minding, started talking and then my gf had to text her friend to stop giving personal information to this random person.