Kalyana Samayal Saadham is the Tamil original of Shubh Mangal Savdhan. Directed by RS Prasanna, it stars Prasanna and Lekha Washington in lead roles. Raghu and Meera are engaged to be married but just a month before their wedding, Raghu clams up as he suffers from erectile dysfunction. Will Meera call off the wedding or help him tide over his problem is the rest of the story. Watch the full film, streaming now on Hotstar.