I think they started "dating" before the दिखाना even aired. I think they hit it right off the bat and then afterwards it got और serious. While filming house of wax (I dunno what time that was during oth) he proposed so what was that 04, या 05. I dunno but they got married in 05. And divorced a few months after. So something like that
It was probably about 2 years (maybe a couple of months more). They met on the set of the दिखाना and the दिखाना was first filmed in 2003 (premiered in Sept but probably started filming around June या July) and they got married in April 2005. So they definitely dated for less than 2 years and then they were only married for 5 months. I know they started dating during the filming of the first season... but that could have been late 2003, early 2004. So I think it's सुरक्षित to assume it was about 2 years that they were together (dating and married)-- maybe closer to 2 1/2 years.