"In view of the prevalence of promoters pledging a substantial portion of their shares, the resultant leverage could be a concern not only for shareholders but also for the health of the financial system.
"This issue calls for a closer examination, especially in the current scenario of buoyancy in stock prices wherein the collateral in the form of pledged shares may appear to justify higher leverage.
"In this regard, the fundamental question is one related to implications from a company's perspective of the practice wherein a company's own shares can be pledged to raise debt on its balance sheet," RBI said in its latest Financial Stability Report.
With regard to the leverages used by corporate borrowers, RBI said "in a typical double leveraging, a holding company raises debt on its balance sheet and infuses it as equity in SPVs.
"From the lenders' perspective, a debt-to-equity ratio of 2:1 at the holding company level could transform into a leverage of 8:1 at the SPV level. While there could be some merit in such practices, risk assessments by banks need to capture this effectively," it added.
"The promoter shares can be significant collateral for a typical company if it wants to expand leverage. Pledging of shares is practiced in other advanced economies too, but it has taken a significantly different form in India.
The report said growth in banking business and activity in primary capital markets remained subdued due to moderate investment intentions in the first half of FY15.
It reiterated that sustaining the turnaround in business sentiment remains contingent on ground outcomes and added that significant new investments may take time to materialise.
On the external front, the fall in global crude oil and commodity prices will help contain the current account deficit "but we must continue to be vigilant as capital inflows tend to be volatile," the RBI said.
