প্রফুল্ল চন্দ্র রায়ের বাবার নাম কী ?
Ray was born Prafulla Chandra Raychowdhury on 2 August 1861 in the village of Raruli-Katipara (then in the Jessore District and subsequently in the Khulna District) in the eastern part of the Bengal Presidency of British India (in present-day Bangladesh). He was the third child and third son of Harish Chandra Raychowdhury (d. 1893), a moderately wealthy "zamindar" (landed proprietor) and his wife Bhubanmohini Devi (d. 1904), the daughter of a local "taluqdar". Ray was one of seven siblings, having four brothers – Jnanendra Chandra, Nalini Kanta, Purna Chandra and Buddha Dev – and two sisters, Indumati and Belamati, both born after their brothers; of Ray's siblings, all except Buddha Dev and Belamati survived to adulthood. 
Harish Chandra Raychowdhury