"The rating is supported by the company’s strong competitive position and unparalleled capitalisation as well as the size and strength of its balance sheet," RAM Ratings said in a statement.
"As the oldest player in the industry, SLIC has amassed unmatched strength in its capitalisation through retained profits."
The previously state-run SLIC was privatized in 2003. It is the largest insurer in balance sheet terms and the company accounted for 45.19 percent of industry assets at the end of December 2006.
RAM Ratings said that SLIC had ample financial flexibility due to its robust balance sheet.
But RAM said disclosure and corporate governance had room to improve and as the company implemented new procedures and sought a stock exchange listing, there could be improvements.
At the end of 2006, the firm had shareholder funds of 8.4 billion rupees which was half of the industry shareholder funds.
Though it had lost its earlier monopoly status, after privatization it was