I called the police.
My group of friends and I have always felt that we were the very few lot of our generation who were feminists, but not in a cliched way. We believed that we had to do what we could since there were lots who were unable to speak about harassment that they underwent and in a way owed it to us and them. We were those fortunate ones who had support of family , friends and were brave enough to go to a police station to give a complaint.
I am talking about Bangalore, a good 15-20 years back.