As of March 31, 2016, the bank had reported gross non- performing assets (NPAs) or bad loans to the tune of Rs 24,875.07 crore, according to the bank's annual report for 2016-17.
The Reserve Bank (RBI) had put gross bad loans on the bank's balancesheet at Rs 31,691.67 crore by 2016 March-end, which works out to a difference of Rs 6,816.60 crore.
In case of net NPAs by this period, the divergence is of Rs 4,755.60 crore.
During 2015-16, the bank had reported a net loss of Rs 3,664.80 crore because of a surge in bad loans on its books. This led to an overall divergence in the bank's provisioning at Rs 2,061 crore.
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The annual report data further showed that the bank's total exposure of 20 largest borrowers and customers by the end of March 2016 stood at Rs 62,329.21 crore (14.55 per cent of total advances), which further increased to Rs 63,967.81 crore (15.53 per cent) as of March 31, 2017.
In his message to shareholders, MD and CEO Mahesh Kumar Jain said that good performance during 2016-17 was overshadowed because of deterioration in asset quality.
As a consequence of higher NPAs and stressed assets, the provisioning rose, which in turn negatively impacted the bottom line of the bank and raised concerns on the capital adequacy front, he said.
"These developments have led to implementation of prompt corrective action (PCA) framework on your bank by RBI. We are ensuring the RBI guidelines relating to distribution of dividend, branch expansion, capital expenditure, investment in subsidiaries are followed," he said.
Earlier in May, IDBI Bank came under RBI's PCA watch because of high level of bad loans on its balancesheet.
In April this year, RBI had issued a set of enabling provisions under the revised PCA framework with a clause that if the bank does not improve, it could either be merged or taken over by another bank.
Under PCA, RBI has powers to curb a bank's capacity of giving fresh loans, besides putting restrictions on dividend distribution, among others.
The sock of IDBI Bank traded at Rs 56.85 on the BSE, up 0.89 per cent from its previous close.