ARUN = (A + R + U + N) + 2*(number of letters) = 54 + 8 = 62
MOHIT = (M + O + H + I + T) + 2*(number of letters) = 65 + 10 = 75
UDITA = (U + D + I + T + A) + 2*(number of letters)= 55 + 10 = 65
Similary
NIRAJ = (N + I + R + A + J) + 10 = 52 + 10 = 62