Nanak Sagar is a lake created by the damming of the stream called Deoha. near Gurdwara Nanak Mata. This is a historical Sikh shrine in a town also named Nanak Mata (often pronounced Matta) in district Udham Singh Nagar, Uttarakhand northern India. The town is associated with Guru Nanak Dev and Guru Hargobind. The Gurdwara is located 15 kilometres west of Khatima Railway Station on the Pilibhit-Tanakpur metre-gauge section of North-Eastern Railway. The holy shrine is near the town of Sitarganj.