RBI issues Rs. 500 notes in new series
The new ₹ 500 banknotes are different from the earlier specified bank note (SBN) series in colour, size, theme, location of security features and design elements; the principal features are –
The size is 66mm x150mm
The colour is stone grey
Red Fort-an image of Indian heritage site with Indian flag on the reverse
The banknote also has features (intaglio printing of Mahatma Gandhi portrait, Ashoka Pillar emblem, bleed lines, circle with ₹ 500 in the right, and the identification mark) which enable the visually impaired person to identify the denomination.
Source : rbi.org.in