Hi Tehsin,
If you want to find any table in sap just take one table name related to that field what you are searching for and go to se11 and enter the table name and click on F7 , it will open Dictionary : Display table in that click on "Dispaly Object List Icon" in the top it will open up an repository browser and drill down the object name and go to Dictionary objects->database tables.
It will open all the liked tables you can fine easily.
Regards,
Varma.