The correct answer is Amritsar. Amritsar is a city in the Indian state of Punjab. It is the holiest city of Sikhism, and the most important pilgrimage site for Sikhs. The city is home to the Harmandir Sahib, also known as the Golden Temple, which is the holiest Gurdwara (Sikh temple) in the world. The Golden Temple is a symbol of Sikhism and a major tourist attraction.
Jalandhar is the second largest city in Punjab. It is a major commercial and industrial center. The city is home to a number of historical and religious sites, including the Jallianwala Bagh, where hundreds of Sikhs were killed by British troops in 1919.
Ludhiana is the third largest city in Punjab. It is a major industrial and manufacturing center. The city is home to a number of educational institutions, including the Panjab University.
Patiala is the fourth largest city in Punjab. It is the former capital of the princely state of Patiala. The city is home to a number of historical and cultural sites, including the Moti Bagh Palace and the Sheesh Mahal.