| Bonus Issues of Fully Paid-up Equity Shares : | |
| Financial Year | Ratio |
| 1957-58 | 1:4 |
| 1961-62 | 1:1 |
| 1967-68 | 4:1 |
| 1974-75 | 3:1 |
| 1977-78 | 2:1 |
| 1999-00 | 2:1 |
| Dividend Declared for the last 10 Years | ||
| Financial Year | Dividend Declaration | Dividend per Share (Rs.) |
| 2008-09 | 2nd September, 2009 | 1.50 |
| 2009-10 | 29th September, 2010 | 2.50 |
| 2010-11 | 28th September, 2011 | 2.50 |
| 2011-12 | 21st December, 2012 | 2.50 |
| 2012-13 | 31st August, 2013 | 3.00 |
| 2013-14 | 26th August, 2014 | 6.00 |
| 2014-15 | 22nd September, 2015 | 3.00 |
| 2015-16 | 30th August, 2016 | 1.00 |
| 2016-17 | 31st August, 2017 | 1.00 |
| 2017-18 | 31st August, 2018 | 0.50 |