The first session of All India Trade Union Congress held at Bombay in 1920 was presided over by

The correct answer is (d) N.M. Joshi.

N.M. Joshi was a trade unionist and freedom fighter who played a key role in the founding of the All India Trade Union Congress (AITUC). He was the first president of the AITUC, which was founded in Bombay in 1920.

Pherozeshah Mehta was a lawyer and politician who was a leading figure in the Indian National Congress. He was not involved in the trade union movement.

V.V. Giri was a trade unionist and politician who served as the third President of India. He was not involved in the founding of the AITUC.

Lala Lajpat Rai was a freedom fighter and politician who was a leading figure in the Indian National Congress. He was not involved in the trade union movement.