Investors' grievance

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Registrar & Share Transfer Agent

BigShare Services Private Limited

Office No S6-2, 6th floor Pinnacle Business Park, Next to Ahura Centre, Mahakali Caves Road, Andheri (East), Mumbai – 400093, Maharashtra

Phone: 022-6263 8200 / 1-22-6263 8200

Secretarial Department

Manisha Somani

Compliance Officer

Petro Carbon And Chemicals Limited

Avani Signature, 6th Floor, 91A/1, Park Street, Kolkata – 700016, West Bengal

Phone: 033-4011 8400