When we take shower the drain pipe is leaking in drop. I can see the water drops as it is coming in the family living room.I have broken the roof and there is little hole, the water is dripping out of the hole at every minute or more than.

One we use the bathroom the frequency of the water drop is more.

Hi Kumarabind and welcome to the Plumbing pageat at AskMeHelpDesk.com. You piggybacked on an a 5 year old dead thread so I gave you one of your own. In the future, before you post, look in the upper left hand corner for the date.
You have to localize the leak. You say you have a hole in the ceiling ?
Do this. Remove the shower strainer and close off the drain. Now fill the shower base with a inch or so with water. Now watch the ceiling for fresh moisture. Let me know the results. Since it's a small leak this may take some time. Good luck, Tom