In its report tabled in Parliament today, CAG said management of fund of PLI and RPLI "suffered from deficiencies like incorrect assessment of investable funds on daily net accretion basis and also monthly investable fund basis".
"The delay in investment resulted in loss of potential return to the tune of Rs 984 crore," it added.
Also, delay in reinvestment of returns from Government of India Special Security Floating rate Bond, non-adherence to Insurance Regulatory and Development Authority (Investment) Regulations and instances of non-availing of Cenvat credit were also noticed, it said.
The report said "the audit of Management of Investment of Insurance Fund of PLI and RPLI was conducted during January and February 2016 covering the period from 2009-10 to 2014-15. Eleven postal circles, comprising of 56 head post offices were selected for scrutiny."
CAG further said, "Audit was conducted with the objective that the Insurance funds were effectively and efficiently collected, accounted and invested as per applicable rules and regulations.
"The audit findings relating to management of Investment of Fund of PLI and RPLI highlighted the significant deficiencies and instances of weak and ineffective control...