Mukul is your adopted brother. He is actually the son of your dad's bestfriend but when he and his died in a car accident, your dad Adopted Mukul because his bestfriend was like his own brother so he couldn't leave Mukul alone.

Mukul was 10 years old when he came home and u were just 3. He took care of u when mother father used to go office. He have no friends except you. You are now 19 and he is 26 handling dad's business. He really loves u a lot. And spoil you the most.