Step 1: Understanding the Concept:
This query requires identifying the specific Pahari artist who had a close association with Raja Balwant Singh of Jasrota as a patron.
Step 2: Detailed Explanation:
The association between the artist Nainsukh and his patron, Raja Balwant Singh, is extensively documented and recognized as a significant artist-patron relationship in Indian art. Nainsukh, brother of artist Manaku, served Raja Balwant Singh for approximately twenty years. During his patronage, Nainsukh produced a notable collection of personal and perceptive portraits of his patron. These artworks diverged from idealized representations, depicting the Raja in common activities such as performing puja, overseeing construction, enjoying music, or resting. Nainsukh's naturalistic approach and acute psychological insight led to a transformation in Pahari painting.
Step 3: Final Answer:
Nainsukh's art was patronized by Raja Balwant Singh.