Ca new scheme applicability

Sir,i am cleared ipcc 1st group on may 2015,2nd group on nov 2015.and joined for articleship on october 1st.2015.as per current scheme i beliv that i can attend ca final on may 2018.am nt yet registerd for ca final,so i have a doubt if i register for CA final now new scheme or old scheme which will be applicable for me?if it is new scheme then my attempt falls only after 3yrs of articleship?please help me