Net profit of Diamond Power Infrastructure rose 5.27% to Rs 30.77 crore in the quarter ended December 2011 as against Rs 29.23 crore during the previous quarter ended December 2010. Sales rose 42.43% to Rs 539.07 crore in the quarter ended December 2011 as against Rs 378.48 crore during the previous quarter ended December 2010.
| Particulars | Quarter Ended |
| | Dec. 2011 | Dec. 2010 | % Var. |
| Sales | 539.07 | 378.48 | 42 |
| OPM % | 11.27 | 13.17 | -14 |
| PBDT | 50.36 | 44.14 | 14 |
| PBT | 42.69 | 38.97 | 10 |
| NP | 30.77 | 29.23 | 5 |