|
| Send by | Date | Letter |
| District Collector and DM , Kollam, Kerala | 18/7/2006 | Regarding Gas tanker leakage accident at Mellimukk |
| Sh. S. Gopalakrishnan, IAS , MD, TEL, Vellore | 6/12/2006 | New website of PESO |
| Dr. A. Jayathilak, District Collector Kozhikode | 10/4/2007 | Help provided by Ernakulam office |
| Mr. Carolyn W. Merritt, Chairman and CEO US Chemic | 22/5/2007 | Petrosafe 2007 |
| Rear Admiral Deepak Taneja VSM | 17/8/2007 | NAVARMS 2007 |
| Reliance Industries Ltd, Mumbai | 27/3/2007 | Usefulness of PESO Website and Public Domain |
| MEC ELEC Industries, Thane | 13/4/2007 | The usefulness of PESO website |
| Indian Oil Corpn. Ltd., Mumbai | 11/8/2007 | On PESO Website |
| Hindustan Pet. Corpon. Ltd., Mumbai | 12/4/2007 | Official website of PESO |
| Aavantika Gas Ltd., Indore | 26/9/2008 | CNG Installation at Indore |
| AEGIS LOGISTICS LTD, Mumbai | 12/4/2007 | User Friendlyness of Website of PESO |
| Sh. C.K. Veda, BIS | 19/7/2006 | Regarding gas cylinders sectional commitee |
