2. Zeenat Aman and Shashi Kapoor in Satyam Shivam Sundaram (1978) – Raj Kapoor’s most controversial film had this couple making out in a cave next to a waterfall. The film fell into trouble with the Censor Board in 1978. It finally opened to a lukewarm response from audiences and critics. However, to date, this remains a benchmark for how far Bollywood pushed its carnal pedal in the 1970s.