B is the daughter of C and C is the daughter-in-law of P. So, P is the grandfather of B. Also, A is uncle of B i.e., A is the brother of B's father. Thus, A is the son of P.
The female members in the family are mother,wives of 3 married sons unmarried daughter and 2 daughters of each of the two sons. Number of female members=(1+3+1+2x2)=9
Only daughter of Kamal's mother---Kamal's sister. So, Ravi's mother is Kamal's sister or Kamal is the brother of Ravi's mother i.e., Ravi's maternal uncle.
Arun's son's wife's daughter---Arun's son's daughter; Mother of daughter of Arun's son---Wife of Arun's son. So, Arun is the father-in-law of the lady.