Wikipedia
Ramraiya
Ramraiyas follow Ram Rai, the excommunicated eldest son of Guru Har Rai (1630–61), who was sent by his father as an emissary to the Mughal court at Delhi. He won the approval of the emperor Aurangzeb but the displeasure of his own father, by changing lines of Guru Granth Saahib, who when choosing the next Sikh Guru passed over Ram Rai and selected his younger brother Har Krishan. A few Ram Raiya institutions are maintained in Dehra Dun ( Uttarakhand state) on land given to Ram Rai by Aurangzeb.