Dear Sundu
As others said you have to approach the office of Labour commissione/ Dy.labour commissioner or Labour officer depending upon the area in which your shop or establisment is located.
As per Shop and Commercial establishment act , for the registration under the same you have to provide information related to employer ( name , Age, Address, status etc), Employees ( Name , father's name, date of joining, Shift working hours, Days of rest etc) on the form A, B and F. You are also required to pay some registration fee as per the state govt.labour department notification.
When you are registered with shop & commercial establishment you are bound to comply with all the statutory provisions as applicable on shop or commercial establishments.
So purchase the forms and complete the same and submit with concerned authority. Shop inspector may visit for verification of sight and information provided by you.
Regards
Anil Anand