The Hinduism religion has many festivals. The large-scale well-known festivals like Diwali, Dussehra or Daserra, Holi, Durga Puja are celebrated in India, Nepal and other parts of the world with great enthusiasm. The following is a brief description of Hindu festivals:

Diwali

Diwali (Festival of Lights in Hindi) celebrates arrival of price Rama back to Ayodhya after victory over evil Ravana as depicted in major Hindu epic of Ramayana. Diwali is one the most well know Hindu festival, and is celebrateed with great fanfare including puja, fireworks, sweets and ceremonies lasting for five days.

Bhaubeej

Bhaubeej (also called Bhaiduj) is celebrated on day after Diwali where sisters pray for their brothers' well being, and receive gifts. It recognizes and strenghthens special relationships that brothers and sisters share.

Dussehra

Dussehra (also Dussehra or Daserra) is celebrated as symbolism for victory of good over evil. It is the day when Rama killed Ravana.

Ganesh Chaturthi

Ganesha Chaturthi celebrates birthday of Lord Ganesha, who is god of auspicious beginnings in Hinduism.

Krishna Janmastami

Birthday of Lord Krishna, the eightth incarnation of Lord Vishnu, is celebrated as Krishna Janmastami, with prayers, plays and fasting.

Durga Puja

Durga Puja is worship of godess Durga, and is mainly popular among Bengalis.

Mahashivratri

Mahashivratri is the night of Lord Shiva when he drank Halahala poision to save gods and demons from its effect.

Ramanavami

Ramanavami celebrates birthday of Lord Rama.

Hanuman Jayanti

Birthday of Lord Hanuman is celebrated as Hanuman Jayanti.

Chhath

Holi

Holi is festival of colours and celebrates arrival of spring. Legends has that it is celebrated as victory of faith of Prahlada over evid designs of Hiranyakashipu who tried to kill him.

Makar Sankranti

Makar Sankranti celebrates transition of Sun to new zodiac sign according to Hindu astrology. Kite flying is a major activity on this day in most of north India.

Pongal

Raksha Bandhan

Raksha Bandhan (Thread of Security in Hindi) is festival commemorating special bonding between brothers and sisters.

Baisakhi

Karwa Chauth

Married women fast for long lives of their husbands on this day in parts of India.

Kumbh Mela

Kumbh Mela's are series of grand gatherings for worship and prayer every 12 years at four places across India.

source: http://en.wikipedia.org/