Complex sentence: His brother Prasoon Pandey is a renowned Indian director of advertising films and his other sister Rama Pandey is a Producer-Director and Tripti Pandey is a cultural activist in Rajasthan.
Split into simpler sentences: His brother Prasoon Pandey is a renowned Indian director of advertising films. His another sister Rama Pandey is a Producer-Director and Tripti Pandey is a cultural activist in Rajasthan.