Tamil Nadu State Transport Corporation [TNSTC] — Conductor took back my tickets

Complaint for 29C - TN01 AN0619
I got 1 ladies and two children ticket (overall 3 tickets) issued at Chetpet For BesantNagar Kovil stop. When we reached Adyar depot the conductor took back my tickets. I asked reason but he just walked away. Later before my stop when I was looking at him and asking him, he returned 2 of the paid tickets while I didn’t get back the ladies ticket.

I again asked the conductor why he took my ticket but since my stop arrived and the bus stopped he just said for checking. I have been traveling so many times but I have never seen a conductor demanding the ticket back. In case the ticket checker had come at this point, it would have turned out to be bad for me.