1) Bengali surname 
Sanyal (সান্যাল Sanyal)is a Bengali surname, common among residents of the Indian state of West Bengal and Bangladesh. According to the Indian caste system, Sanyals belong to the Bengali Brahmin group and along with Bāgchi, Lāhiri, Māitra, Bhāduri etc. constitute the uppermost strata of the Bengali Brahmin caste. Sanyal hails fro...