Who among the following is credited with the introduction and popularization of the Dhrupad form of music?

Raja Man Singh Tomar of Gwalior (reigned 1486–1516) is widely credited with the introduction and popularization of the Dhrupad form of music. He played a pivotal role in transforming Dhrupad from a temple-based tradition into a sophisticated courtly genre. He established an illustrious musical institution in Gwalior and organized discourses on musical theories, which helped refine the form. Under his patronage, the 'Vishnu pada' style of singing was adapted into Hindi songs, making classical music more accessible. While Emperor Akbar and his court musician Tansen later significantly refined and further popularized Dhrupad, its foundational growth and transition to the royal courts are primarily attributed to Raja Man Singh Tomar. Other figures like Naik Gopal were associated with Dhrupad in earlier periods, such as in the court of Alauddin Khilji, but the systematic popularization occurred under the Tomar ruler.