Naropa, also known as Abhayakirti, was a revered Indian Buddhist master who played a significant role in the development and spread of Buddhism in India. He is considered to be one of the 84 Mahasiddhas, or great adepts, of the Vajrayana tradition of Buddhism.

One of the main contributions of Naropa to Indian Buddhism was his role in the transmission of the teachings of Mahamudra, a key aspect of Vajrayana Buddhism. Mahamudra is a form of meditation that aims to achieve direct realization of the nature of mind and ultimate reality. Naropa received these teachings from his guru, Tilopa, and passed them down to his own disciples, including Marpa, Milarepa, and Gampopa, who became important figures in the Kagyu school of Tibetan Buddhism.

Naropa's teachings on Mahamudra were instrumental in the revival of Buddhism in India during the 11th century, when it was facing decline due to the rise of Hinduism. His teachings attracted many followers and helped to establish a strong foundation for the growth of Buddhism in India.

In addition to his role as a teacher, Naropa was also a prolific writer and composed many important texts on Buddhism. His most famous work is the "Six Yogas of Naropa," which outlines a series of advanced meditation practices for achieving enlightenment. These teachings have had a lasting impact on the development of Tibetan Buddhism and continue to be studied and practiced by many Buddhist practitioners today.

Furthermore, Naropa is also known for his unconventional approach to teaching and spiritual practice. He was known to use methods such as shock, ridicule, and physical challenges to test the dedication and understanding of his students. This approach, although unorthodox, was effective in helping his disciples to break through their limited perceptions and gain deeper insights into the nature of reality.

Overall, Naropa's contributions to Indian Buddhism are significant and far-reaching. His teachings and writings continue to inspire and guide Buddhist practitioners, and his legacy lives on through the many lineages and traditions that have been influenced by his teachings. He is revered as a great master and his impact on Indian Buddhism is undeniable.