During the Mughal period in India, painting reached its highest level of development during the reign of Jahangir. Jahangir was known for his great patronage of the arts, and under his rule, Mughal painting flourished. Mughal painting during Jahangir`s reign was characterized by its detailed depiction of subjects, vibrant colors, and meticulous attention to patterns and textures.

Although Akbar, Aurangzeb, and Shahjahan were also influential rulers during the Mughal period, it was Jahangir who made significant contributions to the development of painting. Akbar, Jahangir`s father, also played a role in promoting painting, but it was under Jahangir`s reign that Mughal painting reached its zenith. Alert - correct answer should be 4 Shahjahan