Obverse
Vignette: Portrait of Mahatma Gandhi on obverse and Parliament House, Delhi on reverse.
RESERVE BANK OF INDIA, GUARANTEED BY THE CENTRAL GOVERNMENT and Promise Text in Hindi and English. Signed by Governor in Hindi and English. 50 and PACHAAS RUPAYE in Hindi in centre. 50 on top corners. RBI seal in lower right corner and Ashoka Pillar on lower left
corner. Serial number on top right and lower left. M. K. GANDHI in Hindi and English below portrait. A floral see through register above Ashoka Pillar. Security thread on right half. Identification feature in Braille in the form of a square added in left centre margin.
Reverse
BHARATIYA RESERVE BANK in Hindi with Parliament House in the centre. 50 in three corners. FIFTY RUPEES in lower right and PACHAAS RUPAYE in Hindi in lower left. Language panel on left.
Microlettering
RBI 50 repeated beside portrait. Microtint of multi directional lines in two colours in geometric pattern visible under magnification within watermark window on obverse.
Security Thread
1 mm Security Thread with RBI / BHARAT in Hindi alternatively read from both obverse and reverse.
RBI Seal
Logo type 4.
Language Panel
Type 6 on reverse
Watermark
Profile portrait of Mahatma Gandhi facing right. R/B/I in three lines in centre, bold 50 in the lower right corner
Dimensions
14.7 x 7.3 cm.
Note

- Special security features like intaglio printing, microprint, paper with fluorescent fibres Security thread with “Bharat” and “RBI” alternating, and identification marks for the visually impaired. Omron - anti photocopying feature and latent image added.
- The numeral 50, RBI Seal, Mahatma Gandhi’s portrait, RBI legend, Guarantee and promise text, Governor’s signature and Ashoka Pillar are printed by Intaglio process or raised printing.



Table
Type No. | Signature | Inset | Prefix | Remark |
---|---|---|---|---|
6.6.3.1 A | C. Rangarajan | AA - AE... | Released in 1977 M. K. Gandhi in Hindi and English below the vignette on obverse. Without dot below Ja in RBI seal. | |
6.6.3.1 AA | C. Rangarajan | ...AE - GH... | Released in 1977 M. K. Gandhi in Hindi and English below the vignette on obverse. With dot below Ja in RBI seal. | |
6.6.3.2 A | Bimal Jalan | ...GN - WV | Henceforth, M. K. GANDHI expanded to ‘MAHATMA GANDHI’ below portrait on obverse. | |
6.6.3.2 B | Bimal Jalan | A | AA - MG | |
6.6.3.2 C | Bimal Jalan | E | AA - TG ... | |
6.6.3.2 D | Bimal Jalan | L | AA - EE | |
6.6.3.2 E | Bimal Jalan | R | AA - PH | |
6.6.3.3 A | Y. V. Reddy | A | AA - CR | |
6.6.3.3 B | Y. V. Reddy | E | ...TN - WS | |
6.6.3.3 C | Y. V. Reddy | F | AA - AH | |
6.6.3.3 D | Y. V. Reddy | L | AA - BH | |
6.6.3.3 E | Y. V. Reddy | R | AA - CM |