Father of Astronomy: Aryabhatta ; work – Aryabhattiyam
Father of Astrology: Varahamihira , works; Panchasiddhantika, Bruhat Hora Shastra
Fathers of Surgery : Charaka and Sushruta , works : Samhitas
Father of Anatomy: Patanjali , work: Yogasutra
Father of Yoga : Patanjali , work : Yogasutra
Father of Economics : Chanakya , work: Arthashshtra
Father of Atomic theory : Rishi Kanada , Work : Kanada sutras
Father of Architecture : Vishwakarmaa
Father of Aero Dynamics: Mayasura , work : Vastu Darpana
Father of Medicine: Dhanvanthri , first propounded Ayurveda
Father of Grammar: Panini , work: Vyakarana Deepika
Father of Natyashastra : Bharatamuni , work : Natyashastra
Father of Kavya (literature) : Krishna Dwaipayana (VedaVyasa) works ; Mahabharata , Ashtaadasha Puranas
Father of Playwriting : Kalidasa , works : Meghadhootam , Raghuvamsham , Kumara Sambhava etc etc
Father of Ganita: Bhaskara II , works : Lilavati
Father of Warfare and Weaponry: Parashurama, works: Kalaripayatu, Sulba Sutras
Father of story writing: Vishnu Sharma, works: Panchatantra
Father of Politics: Chanakya, works: Arthashashtra, Nitishashtra
Father of Sexual Anatomy: Vatsyana, work: Kamasutra
Father of Philosophy: Sri Krishna, work: Sribhagavadgeete
Father of Advaitha: Shankara, works: commentaries (Bhashyas), panchadasi, vivekachudamani,
Father of Alchemy: Nagarjuna, work: Pragnaparamita Sutras
Father of Aerospace technology: Maharishi Bharadwaj; work- Vimaan Shashtra
Compiled by Shudra_sanatani on twitter
Universities in ancient India other than Nalanda & Takshashila : Vikramashila, Vallabhi, Odantapuri, Pushpagiri & Somapura. Nalanda was an ancient center of higher learning in Bihar from 427 BCE to 1197 CE. It was established in the 5th century CE in Bihar. Lost due to invasions