Haldwani is the largest city of Kumaon. It is also the third most populous city in the Indian state of Uttarakhand. Haldwani is said to be the fina…Haldwani is the largest city of Kumaon. It is also the third most populous city in the Indian state of Uttarakhand. Haldwani is said to be the financial capital of Uttarakhand, having the most commercial, economic and industrial activities of the state. Haldwani is located in the Nainital District, and is one of its eight Subdivisions. The Haldwani Urban agglomeration has 656,000 people as of 2021, and is the third most populous UA in Uttarakhand, after Dehradun and Haridwar. Being situated in the immediate foothills of Kumaon Himalayas, the Kathgodam neighbourhood of Haldwani is known as the "Gateway to Kumaon".