- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31.03.2020)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31st December, 2019)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31st December, 2018)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31st December, 2017)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31st December, 2016)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31.12.2015)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31.12.2014)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31.12.2013)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31.12.2011)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31.12.2010)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31.12.2009)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (As on 31.12.2008)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (2007)
- Number of Trade Unions under Trade Union Act, 1926 in Ambala District of Haryana (2006)