Name the place where the Indian National Congress Session was held in September 1920.

Lala Lajpat Rai was the chairman of the Indian National Congress Session.

Indian National Congress Session was held in September 1920 at Kolkata (West Bengal)

Agenda was to pass the resolutions of the non-cooperative movement (Swaraj).

Hence, the Indian National Congress Session was held in September 1920 at Kolkata.