1. Hinduism: Allahabad has a significant Hindu population, and it is considered one of the holiest cities in Hinduism. Allahabad is home to the Triveni Sangam, the confluence of the Ganges, Yamuna, and Saraswati rivers, where the Kumbh Mela, a massive Hindu pilgrimage, is held every 12 years. Other important Hindu temples in Allahabad include the Allahabad Fort, which houses the Akshaya Vat, a sacred fig tree, and the Hanuman Temple, dedicated to Lord Hanuman.
2. Islam: There is also a considerable Muslim population in Allahabad. The city has several mosques, including the Jama Masjid and the Khuldabad Mosque. Muslims celebrate festivals like Eid-ul-Fitr and Eid-ul-Adha with great fervor.
3. Christianity: Christianity has a presence in Allahabad, with several churches and missionary schools in the city. The Allahabad Diocese of the Church of North India is headquartered here.
4. Sikhism: Allahabad has a small Sikh community, and there is a gurdwara located in the city. Sikhs celebrate festivals like Guru Nanak Jayanti and Baisakhi with devotion.
5. Jainism: There are a few Jain temples in Allahabad, with the most notable one being the Jain Temple at Mankameshwar. Jains celebrate festivals like Diwali and Mahavir Jayanti.
Additionally, due to the city's diverse population and historical significance, Allahabad also has communities practicing other religious beliefs, including Buddhism and Bahá'í Faith, although they may have a smaller presence compared to the major religions mentioned.
