The Indian Puzzle Championship 2015 was held online on 9th August, 2015. This championship was held to select the Indian A team for the 24th World Puzzle Championship that will be held in Sofia, Bulgaria.

The Times Sudoku Championship 2015 was held across 4 different cities in association with Times of India newsgroup. 3 winners from each city were invited for the national finals, along with the Indian contingent of 2014, where 4 winners (2 experienced, 2 non-experienced) were sponsored to participate in the 10th World Sudoku Championship that will be held in Sofia, Bulgaria.

The Indian Sudoku Championship 2015 was held online on 28th June, 2015. This championship was held to select the Indian A team for the 10th World Sudoku Championship that will be held in Sofia, Bulgaria. This Championship was also used to determine the Indian Sudoku Champion for 2015 (this clarification is made because there are two National level Sudoku events for this year - it is obvious for the years when there was just one Championship).

The Times Sudoku Championship 2014 was held across 4 different cities in association with Times of India newsgroup. 3 winners from each city were then invited for the national finals to select the India A team for the 9th World Sudoku Championship that was held in London, UK.

The Indian Sudoku Championship 2014 was held online on 1st June, 2014. This championship was held to select the Indian B team for the 9th World Sudoku Championship that was held in London, UK. This Championship was also used to determine the Indian Sudoku Champion for 2014 (this clarification is made because there are two National level Sudoku events for this year - it is obvious for the years when there was just one Championship).

The Indian Puzzle Championship 2014 was held online on 25th May, 2014. This championship was held to select the Indian A team for the 23rd World Puzzle Championship that was held in London, UK.

The Indian Sudoku Championship 2013 was held online on 11th August, 2013. This championship was held to select the Indian B team for the 8th World Sudoku Championship that was held in Beijing, China. This Championship was also used to determine the Indian Sudoku Champion for 2013 (this clarification is made because there are two National level Sudoku events for this year - it is obvious for the years when there was just one Championship).

The Times Sudoku Championship 2013 was held across 4 different cities in association with Times of India newsgroup. 4 winners from each city were then invited for the national finals to select the India A team for the 8th World Sudoku Championship that will be held in Beijing, China.

The Indian Puzzle Championship 2013 was held online. This championship was held to select the Indian team for the 22nd World Puzzle Championship that will be held in Beijing, China.

The Times Sudoku Championship 2012 was held across 4 different cities in association with Times of India newsgroup. 4 winners from each city were then invited for the national finals to select the Indian team for the 7th World Sudoku Championship that was held in Kraljevica, Croatia.

The Indian Puzzle Championship 2012 was held online. This championship was held to select the Indian team for the 21st World Puzzle Championship that was held in Kraljevica, Croatia.

The Indian Sudoku Championship 2011 was held in association with various reputed colleges across the country, with 14 regional rounds in different cities. The toppers from the regional rounds and the online round were invited for the national finals to select the Indian team to represent India at the 6th World Sudoku Championship (WSC) in Eger, Hungary.

The Indian Puzzle Championship 2011 was held in association with various reputed colleges across the country, with 13 regional rounds in different cities. The toppers from the regional rounds and the online round were invited for the national finals to select the Indian team to represent India at the 20th World Puzzle Championship (WPC) in Eger, Hungary.

The Indian Puzzle Championship was held online on 12th September 2010. This championship was held to select the Indian team for the World Puzzle Championship 2010 that was held in Warsaw, Poland.

The Indian Sudoku Championship was organised in association with TechFest at IIT Bombay on 24th January 2010. Preliminary online rounds were held on 3rd and 9th of January. This championship was held to select the Indian team for the World Sudoku Championship 2010 that was held in Philadelphia, USA.

The Indian Puzzle Championship was held online on 04th October 2009. This championship was held to select the Indian team for the World Puzzle Championship 2009 that was held in Antalya, Turkey.

The Indian Sudoku Championship was held online on 14-15th March 2009. This championship was held to select the Indian team for the World Sudoku Championship 2009 that was held in Zilina, Slovakia.

The National puzzle championship was held in October 2008. The winner was Rajesh Kumar, who won the title for the fourth time.