This week's Shabana-gaana is from Atithee (1978), a movie I have not seen.
"Rang birange nazaare" is a nice enough duet, though I have to admit that Shabana ji's performance in the song is fairly generic and uninspired. Songs like this really don't play to her strengths, even this early in her career when she frequently played the masala heroine. She did better hamming it up in the funny songs in Parvarish.
The real question this video raises is: Why did the costume designer helmet Shashi with such a terrible wig, when he has such gorgeous natural curls?