Howrah or Haora is an industrial city, a municipal corporation in the Howrah district, West Bengal, India. It is the headquarters of the district, and also the headquarters of the Howrah Sadar subdivision of the district. Located on the west bank of the Hoogli River, it is a twin city to Kolkata. Howrah is the second smallest district after Kolkata. The two cities are connected by four bridges on the river Ganges, these being the Howrah Bridge (also known as Rabindra Setu), the Vidyasagar Setu (also known as the second Hooghly Bridge), the Vivekananda Setu (also known as Bally Bridge), the Nivedita Setu (also known as Second Vivekananda Setu) and ferry services between various jetties.