Serene Productions, led by Adar Poonawalla, has invested Rs 1,000 crore in Dharma Productions and Dharmatic Entertainment.The strategic investment gives Serene Productions a 50% ownership stake in the combined entity.Karan Johar will remain the executive chairman, while Apoorva Mehta will continue as the CEO of Dharma Productions.The partnership aims to leverage the strengths of both companies for growth and expansion in the entertainment sector.