Section 35(6)(a) in The Life Insurance Corporation of India (Employees) Pension Rules, 1995
(a)In the case of an employee retiring before completing a qualifying service of thirty-three years, but after completing a qualifying service of ten years, the mount of pension shall be proportionate to the amount of pension admissible under sub-rules (2) and (3) and in no case the amount of pension shall be less than the amount of minimum pension specified in these rules.