Amitabh Bachchan and Rekha
Most -- if not all -- Hindi movie lovers feel the Amitabh-Rekha chemistry remains unmatched.
Two of the most enigmatic Bollywood stars ever, their onscreen chemistry sizzled in hits like Do Anjaane (1976), Khoon Pasina (1977), Ganga Ki Saughand (1978), Muqaddar Ka Sikandar (1978), Suhaag (1979), Mr Natwarlal (1979).
And, of course, Silsila (1981).