Tamil Nadu Pollution Control Board (TNPCB) Consent to Establish (CTE) and Consent to Operate (CTO) are mandatory approvals for industries, manufacturing units, and service sectors to ensure compliance with environmental laws. CTE approval is required before starting construction or installation of machinery, while CTO is mandatory before commencing operations. TNPCB consent covers air... https://www.ecfile.in/consent-to-operate.html