Digboi, Aug. 16 -- A well-known Class-I contractor with Indian Oil Corporation's Assam Oil Division (AOD) has been missing for the past four days. The missing individual has been identified as 66-year-old Putul Sarma, according to his family and colleagues.

Sarma, the owner of M/S Prasanna Welding Industries, resides in Borbil No. 1, Digboi, in Assam's Tinsukia district. He was last in contact with his family and colleagues on Tuesday, Aug. 12. Since then, attempts to reach him by phone have been unsuccessful.

His wife has since filed a missing-person report at the Digboi Police Station, prompting search efforts around the township and his usual work sites.

While the police have not released further details or confirmed the cause of hi...