This happened with my friend.

My friend was travelling from Mumbai to Delhi in Mumbai Garib Rath. She and her co-passenger had same looking trolly bag. Train's time to reach Delhi is next day around 12 pm. Next morning she got up late had her breakfast and waited for train to reach Delhi. When train was about to reach Delhi, she pulled the trolly bag to pack her belongings. When she opened it , she was shocked that the bag was not hers. She searched for the bag but could not find it. Co-passenger told her that a man with same looking back had got down at Jaipur.

She was shocked, confused, tensed and clueless. She didn't knew the guy, neither his number nor his name. She didn't knew anything except that the person has her bag and had get down at Jaipur.

Somehow she managed to get his number and contacted him. He was a nice person who by mistake took her bag. He came from Jaipur to Delhi to give back her suitcase and take his own.

Thank you vipul for the question.