Well, "four rapes" is an exaggeration. There is only one rape. The other three are attempts by essentially "good" men who, once their attempted rapes are foiled, turn into their would-be rape-victim’s best friends and protectors!! Why did I persist in watching such a bizarre film? Well, partly because the story was engaging to begin with, partly because I love Sharmila Tagore and was intrigued to see her almost-pairing with Balraj Sahni, and partly because, having started, I wanted to see where it was going! The film is the strangest mix of awful and engaging, with the awful far outweighing the engaging. 
Like all movies that are cursed by a bad second half*, this one begins very promisingly. There are snapshots of exotic Kenya including African wildlife and the “wild” tribals (much as I resent the exoticisation of India I can bear it tolerably well when its done to any other part of the world!) – all of which should convince you that you are in exotic Africa!