Solution:

The Bengal School of Art, Avant Garde refers to the people or works that are experimental or innovative, particularly with respect to art, culture, and politics.

They broke away from the tradition of oil painting
They broke away from the realistic style of Raja Ravi Varma and company artists

The Pilots of this school were Ernest Binfield Havel and Abanindranath Tagore. The other artists of this group were Gaganendranath Tagore, Asit Kumar Haldar, M.A.R Chughtai, Sunayani Devi (sister of Abanindranath Tagore), Kshitindranath Majumdar, Nandalal Bose, Kalipada Ghoshal, Sughra Rababi and Sudhir Khastgir.