The veteran actress died this morning in Hyderabad due to heart attack. She was 51.
"Paruthiveeran" star Priyamani took to Twitter to pay Kalpana an emotional tribute.
"Deeply saddened and shocked to hear the sudden demise of one of my fav actress Kalpana Chechi!what an actress!huge loss indeed!RIP Chechi!"
Malayalam actor Prithviraj, who has also worked in Bollywood films like "Raavan" and "Aurangzeb", wrote on his Facebook page, "RIP Kalpana Chechi! A fine actor and a finer human being! We flew together in to Hyderabad yesterday afternoon... And she was in such high spirits as always! You will be missed forever!!"
"Devastated to hear about Kalpana chechi. I've known her since I was a toddler and she would always tell me stories about my childhood. At a loss for words. When we shot the boat scene where Charlie kisses Mary, I remember her being so happy. She kept saying I would never give her kisses as a child," actor Dulquar Salman wrote in his facebook page.
"Shocked and dismayed to hear of her demise. Always the one to surprise us, with her performances, words and her wit - onscreen and offscreen. A consummate artiste - Kalpana. Rest in peace Chechi," National award-winning Malayalam director Anjali Menon wrote.