1. Indian Oil Corporation Limited, Bongaigaon Refinery, Dhaligaon, 783385, Assam, India
2. Department of Chemistry, Royal Global University, Betkuchi, Guwahati, Assam 781035, India
3. Department of Chemistry, Morigaon College, Morigaon 782105, Assam, India
4. Department of Energy, Tezpur University, Napaam, 784028, Assam, India