Based on the signature and the series, this note is roughly 36 to 41 years old.
Key Details from the Images:
The Governor: The note is signed by Dr. Manmohan Singh, who served as the Governor of the Reserve Bank of India (RBI) between 1982 and 1985.
The Design: This is the "Aryabhata" series, which was first introduced in the late 1970s to celebrate India's progress in space science.
Condition: It looks like a well-kept "circulated" note. Interestingly, there is some blue ink handwriting in
