Off: Esiyal Mining & Industries Ltd. Aditya Birla Group, 10, Camac Street 1st Floor, Kolkata-700017 (M):9331937785 L-501
Off: P-2, Dalimtolla Lane Kolkata-700006 (M):9830708232 L-030
Off: B.K. Dhacholia & sons 156, Lenin Sarani Flat-86, Kolkata-700013 (M):25509056 L-182
(M):9331062465 L-483
Off: Dorwal & Co. Ram Tekri Road, Jugsalai, Jamshedpur Jharkhand-831006 (M):292342 L-436
