The fourth season was titled "Aahat: The All New Series", which aired on every Friday and Saturday nights. In the season, Durjan who was the head of Paranormal And Supernatural Activities Research used to collect powers from the spirits for his boss. He sends Harsh (Chaitanya Choudhury), Raghav (Vishal Gandhi) and Yamini (Krystle D'Souza) to deal with a new supernatural power every week with the story being divided into two episodes. The season had three crossover episodes with the series "CID". Once in November 2009, second time in February 2010 and third time in June 2010. This time the season managed to gain high TRP ratings and was declared a hit. It is one of the most popular seasons of Aahat.