Baiju Bawra is the correct answer. Baiju Bawra was a famous musician who served at the courts of Raja Man Singh Tomar and Bahadur Shah of Gujarat.

Option 1: Baiju Bawra is the correct answer as mentioned above. Baiju Bawra was a renowned musician who was associated with the courts of Raja Man Singh Tomar and Bahadur Shah of Gujarat.

Option 2: Tansen, also known as Mian Tansen, was a legendary musician in the court of Emperor Akbar. Although he is considered one of the greatest musicians in Indian history, he did not serve at the courts of Raja Man Singh Tomar or Bahadur Shah of Gujarat.

Option 3: Lal Kalawant is not a well-known musician in the history of Indian classical music and there is no evidence to suggest that he served at the courts of Raja Man Singh Tomar or Bahadur Shah of Gujarat.

Option 4: Rang Khan Kalawant is also not a recognized musician in the history of Indian classical music and there is no information available to suggest that he served at the courts of Raja Man Singh Tomar or Bahadur Shah of Gujarat.

In conclusion, the correct