also, consider this: Since my father's initial savings, PF, etc, were calculated based on the 140 rupees scale, there were cases where bonuses were declared many years later to be paid in arrears. However, such bonuses would also be based on the 140 rupees scale and would be a pittance when he received it because by the time he received it, it's value had diminished.
All his savings, insurances, investments in his early career were calcualted based on the 140 rupees scale. Therefore, the returns were 'small'. With low inflation, the returns would have held some value. But due to high inflation, almost all of his savings and investments from early career became a pittance. You can do the calculations. A person 10-20 years junior would also have had similar investment returns / savings because his investments would be based on a few thousand rupees each month while for those 10-20 years of his 'seniority', my father's savings, based on a few 100 rupees, would not yield much.