I remember Rs.8 per liter. This was in 1989 and I was in 9th standard. I didnt have a drivers license but we lived in a small village and it was common for kids to drive. I had happily taken up the job of filling up my father's Bajaj Chetak and uncle's Rajdoot every week. Even in 1996, I remember i used to get 2.6-2.7 liters for Rs.50.
It is funny & shocking at the same time to see how fast prices have increased.