Who among the following played a dominant role in establishing the All India Trade Union Congress ?
[A]Basawon Singh (Sinha)
[B]Subodh Banerjee
[C]Lala Lajpat Rai
[D]Ashok Mehta

Lala Lajpat Rai
The All India Trade Union Congress is the oldest trade union federations in India and one of the five largest. It was founded on 31 October 1920 in Bombay by Lala Lajpat Rai and Joseph Baptista. It was the primary trade union organization in India. Since then it has been associated with the Communist Party of India.