How is the IIM Ahmedabad composite score calculated?

Answer
CS = 0.35 × Normalised Application Rating + 0.65 × Normalised overall CAT score, which resolves to (AR × 0.35 ÷ 38) + (CAT score × 0.65 ÷ 204). The divisor 38 is the average Application Rating of the top 50 candidates in the pool, so profiles are scored relative to the strongest applicants that year.
Question
How is the IIM Ahmedabad composite score calculated?