Shekhar is the brother of Abhinav, Sheena is the daughter-in-law of Rekha, who is mother of Gaurav. Aman has only three sons in which one is Gaurav. Sheena has two children i.e. Saurav and Aakash respectively.

If Abhinav is the brother-in-law of Sheena, then how is Aman related to Rekha’s grandchildren?