Kunzru connection to Dar family

My 15th-great-grandfather was Meeru Pandit Dar, ( Meeru Pandit Dar), a Kashmiri landowner in the 17th Century. I read recently that his descendants owned a feudal estate in Kunjargaon, from which the Kunzru surname many have derived from. This estate was passed down in inheritance, and this branch of the family changed their surname to Kunzru. I also read that Dar's direct descendant was Kirparam Kunzru (Kirparam Kunzru), great-great grandfather of Hriday Nath Kunzru. Does anyone know how they are related and if possible, add a few profiles in between to fill in the gap?