Common practices have crept into most religious faiths in India and many of the festivals that mark each year with music, dance and feasting are shared by all communities. Each has its own pilgrimage sites, heroes, legends and even culinary specialties, mingling in a unique diversity that is the very pulse of society.

Hinduism

The underlying tenets of Hinduism cannot be easily defined. There is no unique philosophy that forms the basis of the faith of the majority of India's population. Hinduism is perhaps the only religious tradition that is so diversified in its theoretical premises and practical expressions as to be called a "museum of religions". This religion cannot be traced to a specific founder nor does it have a "holy book" as a basic scriptural guide. The Rig Veda, Upanishads and the Bhagwad Gita can all be described as the sacred text of the Hindus.

Unlike most other religions, Hinduism does not advocate the worship of one particular deity. One may worship Shiva or Vishnu or Rama or Krishna or some other gods and goddesses or one may believe in the 'Supreme Spirit' or the 'Indestructible Soul' within each individual and still be called a good Hindu. This gives an indication of the kind of contrasts this religion is marked by. At one end of the scale, it is an exploration of the 'Ultimate Reality'; at the other end there are cults that worship spirits, trees and animals.

There are festivals and ceremonies associated not only with gods and goddesses but also with the sun, moon, planets, rivers, oceans, trees and animals. Some of the popular Hindu festivals are Deepawali, Holi, Dussehra, Ganesh Chaturthi, Pongal, Janamasthmi and Shiva Ratri. These innumerable festive occasions lend Hinduism its amazing popular appeal and make the Indian tradition rich and colorful.

Islam
	The Arab traders brought Islam to India in the early 8th century, but it was not until the 12th century that it became a force to reckon with in the Indian sub-continent.

Unlike Buddhism, Jainism and Sikhism which emerged as offshoots of Hinduism, the concept, customs and religious practices of Islam were unique to this faith which professed universal brotherhood and submission to Allah - the God Almighty.

The Muslim invaders in the 12th century and the Mughal rulers in the 16th and 17th centuries helped in the spread of Islam in India. In its first phase, Islam was aggressive. But the mystics of Islam, or the Sufi saints, helped in spreading the message of peace and universal love.

The spirit of brotherhood propounded by Sufi saints and preachers like Kabir and Nanak helped in loosening the rigidity of the caste system. The interaction of the two faiths led to a synthesis of Hindu and Islamic elements in almost every sphere of life and culture. After an initial period of conflict and confrontation, today the two religions have accommodated and enriched each other.

Sikhism

The Sikh religion emerged during the early 16th century in the state of Punjab in North India. The founder of this faith was Guru Nanak, who from his childhood was attracted to both Hindu and Muslim saints. Born a Hindu, but also inspired by the teachings of Islam, he began to preach the message of unity of both religions. According to him, the basic teachings of both faiths were essentially the same. Nanak attracted many followers and came to be known as a Guru or a teacher. His disciples came together to form a new religious tradition called Sikhism.

The Gurus who followed Nanak contributed to the consolidation and spread of Sikhism. The teachings of Guru Nanak were incorporated in the 'Guru Granth Sahib', the Holy Book of the Sikhs which became a symbol of God for Sikhs. The fifth Guru, Guru Arjun built the Golden Temple at Amritsar which became the holiest of Sikh shrines. The tenth Guru, Govind Singh imparted military training to the Sikhs to help them defend themselves.

Christianity
	By tradition, Christianity is said to have arrived in India with Saint Thomas, one of the apostles of Jesus Christ, who spent some years in South India and possibly died there.

However, others believe that the first missionary to arrive in the country was Saint Bartholomew. Historically, Christian missionary activity started with the advent of Saint Francis Xavier in 1544. He was followed by Portuguese missionaries at first and eventually by missionaries from other countries like Denmark, Holland, Germany and Great Britain. Throughout the 18th and 19th centuries Catholic as well as Protestant missionaries preached Christian doctrines in India and also made important contributions to social improvement and education in India.

Buddhism

Buddhism originated as an offshoot of Hinduism in India, but eventually it became popular all over Asia. The personality and teachings of Gautam Buddha, the founder of this faith, have illumined the lives of millions of people in Japan, China and Southeast Asia. There are strong lines of similarity between Buddhism and the basic teachings of Hinduism. Buddhism is based on the principle or the law of impermanence. Buddha suggested that life is full of sufferings and one must act in a way to escape from them. He laid down four basic principles (TRUTHS) to achieve that: * All life is sorrow and suffering * Human suffers due to desire or selfcenteredness * Overcome desire * Desire can be ended by following the eight fold path- right belief, intention,speech, action, work, effort, thinking, and meditation.

According to this, everything is subject to change, although some things may last longer than others. The other basic principle of Buddhism is the law of causation, according to which nothing occurs due to pure chance. Besides natural forces, it is the karma which leads to the occurrence of all events. The popular notions of the indestructible soul and the cycle of rebirth emerge from these two basic philosophies.

Jainism

Jainism as a religious tradition was established in India about the same time as Buddhism. Mahavira, one of the jinas (conquerors) preached the Jain philosophy around the same time that Buddhism began. Like Buddhism, Jainism rose against the corruption in the interpretation of Hinduism prevalent at the time. The underlying philosophy of Jainism is that renunciation of worldly desires and self-conquest leads to perfect wisdom.

This faith believes in total abstinence and asceticism as practised by the Jinas and the Tirthankars ("crossing-makers"). The "crossing refers to the passage from the material to the spiritual realm, from bondage to freedom. Followers of this faith accept the popular gods of Hinduism but they are placed lower than the jinas.