In decipher jumbled up description type of questions, a round-about description is given in the form of certain small relationships and direct relationship between the persons concerned is to be deciphered.
If Neena says, "Anita`s father Raman is the only son of my father-in-law Mahipal", then hoe is Bindu, who is the sister of Anita, related to Mahipal ?
Only son of Neena's father--in-law Mahipal -- Neena's husband.
So, Raman is Neena's husband and Anita and Bindu are his daughters.
Thus, Bindu is the grand daughter of Mahipal.