Haldwani, along with its twin town of Kathgodam, forms the Haldwani-Kathgodam municipal Corporation (since May 2011) in Nainital District in the Indian state of Uttarakhand. Haldwani is the third most populous city in Uttarakhand, and is known as the “Gateway of Kumaon”.

Haldwani is well connected to the country’s capital Delhi via road and rail. Regular buses are available from Delhi which takes around 8–9 Hrs to reach Haldwani. Some luxury buses including Volvo are also available but they have fixed timing. All the buses leave from the Haldwani Bus Station for Delhi’s Anand Vihar ISBT. Railway is the other main transportation available for travelling between Haldwani and Delhi.

Haldwani and Kathgodam are two railway stations. Ranikhet Express (10:45 pm from Old Delhi-Daily), Sampark Kranti (4:00 pm from Old Delhi-Daily) and Delhi(Anand Vihar)-Kathgodam Shatabdi Express (6:00 am from Delhi Anand Vihar Terminal-All days except Thursday) are some other trains available. There are other seasonal trains too.

The nearest airport is Pantnagar airport but one rarely gets any passenger flights. The national highways to Rampur and Haridwar have since widened and strengthened, so the road-route is now comfortable. A new ISBT (Inter state bus terminal) is to come up in Golapar area.

The connectivity to state capital Dehradun is also good. There are a number of buses for Dehradun-Haldwani route. Railway is planning shorter railway track via Ramnagar-Kotdwar-Haridwar instead of via Rampur-Moradabad.

Economy:
Well connected with the Indo-Gangetic plain by road (to New Delhi, Dehradun and Lucknow) and rail (New Delhi, DehraDun, Lucknow and Kolkata), Haldwani is an important commercial hub. It is home to one of the largest vegetable, fruit and foodgrain markets in Kumaon. Being the gateway to most of Kumaon and parts of Garhwal, it is an important revenue center of Uttarakhand based on its advantageous location as a base depot for goods in transit to the hills. The Gaula river is exploited for a large quantity of boulders, sand and gravels every year, and forms an important revenue source for both the government and local business.

Reference Links:
http://indiarailinfo.com/train/timetable/17134/7322/951