Section 7(5)(iii) in Tamil Nadu Electricity Grid Code, 2005
(iii)Reporting Procedure: In the case of an event, which was initially reported by a State entity to SLDC orally, the entity will give a written report to SLDC. In the case of an event, which was initially reported by SLDC to an entity orally, the SLDC will give a written weekly report to the entity in accordance with this section.