Hi Pramod, Haridwar is one the most visited destinations near the national capital. You can take a New Delhi to Haridwar taxi, which will directly take you to the destination.
The details of ISKCON Mandir in Haridwar are as follows:
Address: Srila Prabhupada Ashram
Gauranga House, Nai Basti
Mahadev Nagar, Bhimgoda
Haridwar
Uttarakhand
India
Telephone: +91-1334-260818 , +91-94111-11894
Website: http://iskconharidwar.com/
'Hare Krishna'