In 1888, Walangkar began publishing the monthly journal titled Vital-Vidhvansak (Destroyer of Brahmanical or Ceremonial Pollution), which was the first to have the untouchable people as its target audience.

He also wrote articles for Marathi-language newspapers such as Sudharak and Deenbandhu, as well as composed couplets in Marathi that were intended to inspire the people. Having read Hindu religious texts, Walangkar concluded that caste was contrived by the Aryan invaders to control the Anaryans (indigenous people).

In 1889, he published Vital Viduvansan (Annihilation of Ceremonial Pollution), which protested the position of untouchables in society and raised consciousness regarding what those people should expect.

He addressed this pamphlet, which was crafted as a collection of 26 questions, to the elites of Maharashtrian society.

T. N. Valunjkar says that Walangkar "can be regarded as the first intellectual rebel from the Dalit community to have launched a scathing criticism of the caste system and the position of dalits in it."