(English title: Cocoon ) is a seminal work in Marathi literature that redefined the modern novel after its publication in 1963. It follows the journey of , a young man from rural Maharashtra who moves to Pune for higher education, only to find himself trapped in a deep existential crisis.

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Nemade, Bhalchandra. Kosala . 12th ed., Popular Prakashan, 2015.

The title Kosala translates to "," symbolizing the protagonist's withdrawal from a world he finds absurd or indifferent. The story is told through an autobiographical narrative divided into six sections, tracing Pandurang's life from his childhood in the village of Sangvi to his disillusionment during his college years and his eventual return home.