What ideologies were represented by the leaders of Congress sitting on the right (Nehru) and left (Patel) of Mahatma Gandhi respectively?

Right- Socialist & Left- Conservative

In this picture, Mahatma Gandhi is having discussions with Jawaharlal Nehru (on his right) and Sardar Vallabh Bhai Patel (on his left). Nehru and Patel represented two distinct political tendencies within the Congress – the socialist and the conservative respectively.