Kolkata (IP News). Satyendra Nath Tiwari has taken over as Director – Marketing of Coal India Ltd. Shri. Tiwari has a rich and vast experience of over 33 years in marketing & sales. He has worked in various capacities since 1986 in Central Coalfields Ltd., Eastern Coalfields Ltd. & Northern Coalfields Ltd. before joining Coal India Ltd. as General Manager – Marketing & Sales. A B.Sc. Engineering graduate with 1st class distinction from BIT MESRA, Shri. Tiwari also has to his credit an MBA with specialisation in Marketing which he completed from BIT MESRA.