Correct Answer: (4) Amritsar
Solution:National Highway 1 links New Delhi to Pakistan border. It starts from New Delhi and ends in the town of Atari in Punjab. After Atari, it passes through Amritsar, Jalandhar, Phagwara, Ludhiana, Rajpura, Ambala, Kurukshetra, Karnal, Panipat, Sonipat and finally reaching Delhi.