Answer : 1. "1885"
Explanation :

The Indian National Congress was established when 72 representatives from all over the country met at Bombay in 1885. Prominent delegates included Dadabhai Naoroji, Surendranath Banerjee, Badruddin Tyabji, Pherozeshah Mehta, W. C. Bonnerjee, S. Ramaswami Mudaliar, S.