Is Rohan arvi's son?

In 2day's episode manav specified Rohan as their grandchild and some months before Neena also told that like pari and Rohan, pushti and gaurav are also their grandchildren. So it means that he is ArVi's son. But purvi had a miscarriage b4 the leap😕

They show whether purvi miscarried the child but purvi never mentioned about rohan to arjun nor pari mentioned about rohan that is suspence who is rohan.ghajani cv also might show rohan as arvi so.