National Highway No 7 connects

New Delhi and Kanya Kumari Jaipur and Chennai Varanasi and Kanya Kumari New Delhi and Chennai

Varanasi and Kanya Kumari

The correct answer is Option (3) → Varanasi and Kanya Kumari National Highway 7 (NH 7) is one of the longest national highways in India, stretching from Varanasi in the state of Uttar Pradesh to Kanyakumari, the southernmost tip of the Indian mainland, in the state of Tamil Nadu.