The new symbol will be the "identity of the Indian currency". The currency is at present denoted simply by "Rs" or "INR" which is short for Indian rupee.
Guidelines for the contest listed on the finance ministry website stipulate the "symbol should represent the historical and cultural ethos of India."
According to the stated link the symbol should be applicable to the standard computer keyboard.
Though it is true that the Rupee may be weakening, but this is a time for celebration for an Indian National.