Which nationalist leader was among the founders of the Deccan Education Society in 1884?

Bal Gangadhar Tilak was among the founders of the Deccan Education Society, alongside Gopal Ganesh Agarkar, Vishnushastri Chiplunkar and others. Gopal Krishna Gokhale joined the society later; therefore the original wording incorrectly described him as its founder. Chronology resolves the item: Bal Gangadhar Tilak occupies the position required by “Which nationalist leader was among the founders of the Deccan Education Society in 1884?”, while a merely famous contemporary name would not satisfy every part of the stem. This development forms part of the changing national movement, in which constitutional negotiation, mass mobilisation, boycott, civil disobedience and revolutionary action followed different strategies; Exact dates and organisational decisions matter because related sessions or phases often performed different functions, a distinction applied here to Bal Gangadhar Tilak. The alternatives need separate labels: Lala Lajpat Rai belongs to another association, Bipin Chandra Pal does not fit the chronology, and Aurobindo Ghosh performs a different historical role. A useful study note pairs Bal Gangadhar Tilak with the date or decision embedded in the question and places Bipin Chandra Pal on its own timeline. On that evidence, the supported choice is Bal Gangadhar Tilak.