Hinduism is often illustrated as a religion of fasts and festivals. Here's a month-wise list of Hindu Festivals and religious event, occasions for Year 2012.
Top 4 January Month Hindu Festival
Lohri: Friday, 13-01-2012
Makarsankranti / Pongal / Tamil New Year / Magha Bihu: Saturday , 14-01-2012
Indian Republic Day: Thursday, 26-01-2012
Vasant Panchami / Saraswati Puja: Saturday, 28-01/2012
February Month Hinduism Religious Event
Maha Shivaratri: Monday, 20-02-2012
March Month Indian Festivals
Holi: thursday, 08-03-2012
Telugu New Year/ Ugadi / Gudi Padwa/ Cheti Chand: Friday, 23-03-2012
April Month Indian Holidays Event
Ramanavami: Sunday, 01-04-2012
Mahavir Jayanti: Saturday, 16-04-2012
Hanuman Jayanti: Friday, 06-04-2012
Baisakhi / Vishu: Friday, 13-04-2012
Bengali New Year / Bohag Bihu: Saturday, 14-04-2012
Akshaya Tritiya: Tuesday, 24-04-2012
May Month Religious Occasions India
Buddha Purnima / Vaisakhi Purnima: Saturday, 05-05-2012
Ganga Dashami / Dussehra: Thurday, 31-05-2012
June Month Hindu Dharma Festivals
Rath Yatra: Thursday, 21-06-2012
July Month Hindu People Festivals
Guru Purnima / Asadha Purnima: Tuesday, 03-07-2012
August Month Indian Festivals
Raksha-Bandhan: Thursday, 02-08-2012
Krishna Janmashtami: Friday, 10-08-2012
Indian Independence Day: wednesday, 15-08-2012
Onam: Wednesday, 29-08-2012
September Month Indian Holidays
Pitr-Paksha begins: Sunday, 30-09-2012
Vishwakarma Puja: Monday, 17-09-2012
Ganesh/Vinayak Chaturthi: Wednesday, 19-09-2012
Navaratri ends: Sunday, 27-09-2012
Vijaya Dashami/Dusshera: Monday, 28-09-2012
Pitr-Paksha ends: Sunday, 30-09-2012
October Month Hindu Utsav
Gandhi Jayanti: Friday, 02-10-2012
Valmiki Jayanti: Wednesday, 29-10-2012
Shikshak Divas / Teacher's Day: Friday, 05-10-2012
Mahalaya: Monday, 15-10-2012
Navaratri begins: Tuesday, 16-10-2012
Durga Puja begins (Maha Saptami): Saturday, 20-10-2012
November Month Hindu Religious Festival Events
Karwa Chauth: Friday, 02-11-2012
Dhanteras: Sunday, 11-11-2012
Chhoti Diwali: Monday, 12-11-2012
Diwali: Tuesday, 13-11-2012
Kali Puja: Tuesday, 13-11-2012
Naraka Chaturdasi: Tuesday,13-11-2012
Vikram New Year 2069: Wednesday, 14-11-2012
Lakshmi Puja / Sharad Purnima: Wednesday, 14-11-2012
Bhai Dooj / Bhai Phota / Bhav-Bij: Thursday, 15-11-2012
Govardhan Puja: Thurday, 15-11-2012
Chhat Puja: Saturday, 19-11-2012
Guru Nanak Jayanti: Wednesday, 28-11-2012
December Month Hindu Religious Festival Events
Christmas : Tuesday, 25-12-12
Top 4 January Month Hindu Festival
Lohri: Friday, 13-01-2012
Makarsankranti / Pongal / Tamil New Year / Magha Bihu: Saturday , 14-01-2012
Indian Republic Day: Thursday, 26-01-2012
Vasant Panchami / Saraswati Puja: Saturday, 28-01/2012
February Month Hinduism Religious Event
Maha Shivaratri: Monday, 20-02-2012
March Month Indian Festivals
Holi: thursday, 08-03-2012
Telugu New Year/ Ugadi / Gudi Padwa/ Cheti Chand: Friday, 23-03-2012
April Month Indian Holidays Event
Ramanavami: Sunday, 01-04-2012
Mahavir Jayanti: Saturday, 16-04-2012
Hanuman Jayanti: Friday, 06-04-2012
Baisakhi / Vishu: Friday, 13-04-2012
Bengali New Year / Bohag Bihu: Saturday, 14-04-2012
Akshaya Tritiya: Tuesday, 24-04-2012
May Month Religious Occasions India
Buddha Purnima / Vaisakhi Purnima: Saturday, 05-05-2012
Ganga Dashami / Dussehra: Thurday, 31-05-2012
June Month Hindu Dharma Festivals
Rath Yatra: Thursday, 21-06-2012
July Month Hindu People Festivals
Guru Purnima / Asadha Purnima: Tuesday, 03-07-2012
August Month Indian Festivals
Raksha-Bandhan: Thursday, 02-08-2012
Krishna Janmashtami: Friday, 10-08-2012
Indian Independence Day: wednesday, 15-08-2012
Onam: Wednesday, 29-08-2012
September Month Indian Holidays
Pitr-Paksha begins: Sunday, 30-09-2012
Vishwakarma Puja: Monday, 17-09-2012
Ganesh/Vinayak Chaturthi: Wednesday, 19-09-2012
Navaratri ends: Sunday, 27-09-2012
Vijaya Dashami/Dusshera: Monday, 28-09-2012
Pitr-Paksha ends: Sunday, 30-09-2012
October Month Hindu Utsav
Gandhi Jayanti: Friday, 02-10-2012
Valmiki Jayanti: Wednesday, 29-10-2012
Shikshak Divas / Teacher's Day: Friday, 05-10-2012
Mahalaya: Monday, 15-10-2012
Navaratri begins: Tuesday, 16-10-2012
Durga Puja begins (Maha Saptami): Saturday, 20-10-2012
November Month Hindu Religious Festival Events
Karwa Chauth: Friday, 02-11-2012
Dhanteras: Sunday, 11-11-2012
Chhoti Diwali: Monday, 12-11-2012
Diwali: Tuesday, 13-11-2012
Kali Puja: Tuesday, 13-11-2012
Naraka Chaturdasi: Tuesday,13-11-2012
Vikram New Year 2069: Wednesday, 14-11-2012
Lakshmi Puja / Sharad Purnima: Wednesday, 14-11-2012
Bhai Dooj / Bhai Phota / Bhav-Bij: Thursday, 15-11-2012
Govardhan Puja: Thurday, 15-11-2012
Chhat Puja: Saturday, 19-11-2012
Guru Nanak Jayanti: Wednesday, 28-11-2012
December Month Hindu Religious Festival Events
Christmas : Tuesday, 25-12-12