The famous book 'Patliputra Ki Samragyi' is written by ______.

Concept: Static GK sections in competitive exams regularly test 'Books and Authors' — matching a Hindi literary work to its writer based on the work's genre and subject matter (mythological retelling, social fiction, or historical fiction).

Application: The book named in the stem — Patliputra Ki Samragyi (the Empress of Patliputra) — is a Hindi historical novel written by Sharad Pagare and published by Vani Prakashan. Pagare is a Hindi novelist recognised specifically for historical fiction set across ancient and medieval Indian dynasties, so this work falls squarely within his authorial identity.

Cross-check: Comparing the offered authors by the genre each is actually known for confirms no other option fits this historical novel:

• Narendra Kohli writes large-scale mythological retellings, such as reimagining the Ramayana and Mahabharata in works like Abhyudaya and Vasudev — a different genre from a dynastic historical novel.

• Mannu Bhandari writes modern social and psychological fiction, such as Aap Ka Bunty and Mahabhoj — set in contemporary life, not ancient/medieval history.

• Mamta Kaliya writes contemporary social fiction, such as Beghar and Dukkham Sukham — again a present-day setting, not a historical dynasty.

Result: Only Sharad Pagare's body of historical fiction matches the book in question, confirming him as the author.