| Company Name | Designation | Appointed on | DSC | Status |
|---|---|---|---|---|
| DORMI INVESTMENT P. LTD. | Director | 26 Sep, 1989 | Yes | Resigned |
| RNB MINERALS AND CHEMICALS PRIVATE LIMITED | Director | - | Yes | Resigned |
| RNB CEMENTS (P) LTD | Director | - | Yes | Resigned |
| RNB REAL ESTATES PRIVATE LIMITED | Director | 01 Feb, 2007 | Yes | Resigned |
| RKB CEMENTS PVT LTD | Managing Director | - | Yes | Active |
| UMIAM CALCINATES PRIVATE LIMITED | Director | 07 Feb, 1981 | Yes | Resigned |
| R N B CARBIDES & FERRO ALLOYS PRIVATE LIMITED | Director | 22 Feb, 2002 | Yes | Resigned |
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