In which year was the All India Trade Union Congress (AITUC) founded?

The All India Trade Union Congress (AITUC) is the oldest trade union federation in India.
It was founded in 1920 in Bombay (now Mumbai).
The formation of AITUC marked the beginning of the organized labour movement in India.
Key leaders involved in its establishment included Lala Lajpat Rai, Joseph Baptista, N.M. Joshi, Diwan Chaman Lall, and others.
AITUC played a crucial role in:
Mobilizing workers against colonial exploitation.
Advocating for better wages, working conditions, and rights.
Linking the labour movement with the broader Indian freedom struggle.
Therefore, the All India Trade Union Congress (AITUC) was founded in 1920.