Answer : 3. "मक्खलि गोसाल"
Explanation :

According to scholars of Indian philosophy and history, the Ajivaka sect was founded by Makkhali Gosal (Goshalak). It was the most influential philosophy prevalent on the Indian soil before the rise of the 24th Jain Tirthankara Mahavira and Mahatma Buddha in the 5th century BC.