Solution:According to Angunttara Nikaya (Buddhist text) and Bhagavati sutra (Jaina text) there were 16 mahajanapadas in ancient India.
16 Mahajanapadas were powerful states that emerged around the 6th century BCE, evolving from smaller Janapadas of the later Vedic period. Spread across the Indo-Gangetic plains and northern Deccan region, these states included prominent ones like Magadha, Kosala, Kuru, and Panchala. Each Mahajanapada developed fortified capitals, organized administrative systems, and standing armies supported by prosperous agriculture.
During this period, advancements in trade, urbanization, and iron technology transformed the region. Additionally, new religious and philosophical ideas began to flourish, contributing to a cultural shift. The Mahajanapadas laid the foundation for powerful empires, with Magadha eventually rising to prominence under the Mauryas..
The Mahajanapadas were religiously diverse, and people followed different religions, such as Hinduism, and heterodox sects such as Buddhism and Jainism. The other heterodox sects in this period were Ajivika, Ajana, and Charvaka. Moreover, The kings often patronized different religions, and the religious leaders had considerable influence over the people.