Complex sentence: Ruma Guha Thakurta was a niece to the legendary film director Satyajit Ray, and Amit Kumar, her son with Kishore Kumar eventually became a celebrity in his own right.
Split into simpler sentences: Ruma Guha Thakurta was a niece to the legendary film director Satyajit Ray, and Amit Kumar. Her son with Kishore Kumar eventually became a celebrity in his own right.