At the end visit one of Amritsar's greatest attractions and its spiritual hub, the Sri Harmandir Sahib, commonly known as the Golden Temple. This is the holiest temple in the Sikh faith. India is home to many religions, and one of these is a centered in the northern Indian state of Punjab: Sikhism. Its adherents believe in a single God, and in the teachings of 10 holy gurus. The temples, or gurdwaras, in the city of Amritsar are both the spiritual and administrative center for 20 million Sikhs worldwide. The temple has been renovated many times, adding features such as the marble inlays along the floor. Maharaja Ranjit Singh, founder of the Sikh Empire of India (1799-1849) had the temple's upper floors covered in 750 kilos of pure gold. Golden Temple in Amritsar has been serving free hot meals, also known as langar, to people of all religions and faiths who come to its doors every day.