The Reserve Bank of India will shortly issue 10 rupees denomination banknotes with M inset letter in both numbering panels in Mahatma Gandhi series 2005. These notes will bear the signature of RBI's Governor Dr. D. Subbarao. Except for the change in the inset letter, the design of these notes to be issued now is similar in all respects to the banknotes in Mahatma Gandhi series 2006, with additional, new security features issued on 27 April 2006. All banknotes in 10 ruprees demoniation issued by the Reserve Bank in the past will continue to be valid.