a) An LDC Mr.X appointed on 1.5.2004 in Pay Band PB-2 + G.P 1900.
b) He has been awarded MACPS on 1.5.2014 in PB-2 + G.P 2000.
c) Pay of Mr.X (LDC) as on 1.1.2016 = Rs.8000 + G.P 2000.
d) He was promoted as UDC(PB-2+GP 2400) w.e.f 1/5/2016 and accordingly his pay was fixed to Rs.8000+GP 2400 (allowed only difference of GP since he was given fixation at the time of MACPS to G.P 2000/-).
e) Annual Increment on 1.7.2016 = Rs.8300 + GP 2400.
How to fix his pay in the 7th CPC by exercising the 3 options(i.e., 1.1.16, date of promotion and 1.7.16) and which one is more beneficial.
Please give an immediate reply, since we have to effect his revised pay in this month.