Ethanol blended petrol duty exemption expanded to specified blends; high speed diesel with biodiesel blends included under exemption. The notification inserts two nil duty entries for ethanol blended petrol blends that require specified volume composition of motor spirit and ethanol and conformity with BIS IS 17586, replaces the diesel blending entry with a formulation based description covering high speed diesel blended with bio diesel up to a defined proportion by volume requiring excise duties on diesel and applicable central/state/union territory/integrated tax on bio diesel, and updates the explanatory cross reference to include the new entries.