| Oasis Media Matrix Ltd. | 531782 | T |
| Oasis Securities Ltd. | 512489 | B |
| Ocean Agro (India) Ltd. | 519491 | T |
| Ocean Infrastructure Ltd. | 532086 | B |
| OCL India Ltd. | 502165 | B |
| OCL Iron & Steel Ltd. | 533008 | B |
| Octant Interactive Technologies Ltd. | 590090 | TS |
| Octav Investments Ltd. | 533010 | B |
| Odyssey Corporation Ltd. | 531996 | B |
| Odyssey Technologies Ltd. | 530175 | S |
| Odyssey Video Communications Ltd. | 517465 | Z |
| Oil & Natural Gas Corporation Ltd. | 500312 | A |
| Oil Country Tubular Ltd. | 500313 | B |
| Oil India Ltd. | 533106 | B |
| OK Play India Ltd. | 526415 | T |
| Olympia Industries Ltd. | 521105 | Z |
| Olympic Oil Industries Ltd. | 507609 | Z |
| OM Metals Infraprojects Ltd. | 531092 | B |
| Omax Autos Ltd. | 520021 | B |
| Omaxe Ltd. | 532880 | B |
| Omega Interactive Technologies Ltd. | 511644 | B |
| Omkar Overseas Ltd. | 531496 | B |
| Omkar Pharmachem Ltd. | 532167 | B |
| Omni Dye-Chem Exports Ltd. | 524384 | Z |
| Omnitech InfoSolutions Ltd. | 532882 | B |
| Omnitex Industries (India) Ltd. | 514324 | B |
| Onida Saka Ltd. | 517242 | Z |
| OnMobile Global Ltd. | 532944 | B |
| Ontrack Systems Ltd. | 532607 | B |
| Onward Technologies Ltd. | 517536 | B |
| Opal Industries Ltd | 517376 | N.A. |
| Opto Circuits India Ltd. | 532391 | A |
| Oracle Financial Services Software Ltd. | 532466 | A |
| Orbit Corporation Ltd. | 532837 | B |
| Orbit Exports Ltd. | 512626 | B |
| Orchid Chemicals & Pharmaceuticals Ltd. | 524372 | B |
| Oregon Commercials Ltd. | 512097 | T |
| Org Informatics Ltd. | 517195 | B |
| Organic Coatings Ltd. | 531157 | B |
| Oricon Enterprises Ltd. | 513121 | S |
| Orient Abrasives Ltd. | 504879 | S |
| Orient Beverages Ltd. | 507690 | B |
| Orient Ceramics and Industries Ltd. | 530365 | TS |
| Orient Paper & Industries Ltd. | 502420 | B |
| Orient Press Ltd. | 526325 | B |
| Oriental Bank of Commerce | 500315 | A |
| Oriental Carbon & Chemicals Ltd. | 506579 | S |
| Oriental Hotels Ltd. | 500314 | B |
| Oriental Trimex Ltd. | 532817 | B |