Holidays to be observed in Bsnl Offices during the year 2021 - BSNL Holidays 2021BSNL Holidays 2021 BHARAT SANCHAR NIGAM LIMITED(A Govt. of India Enterprise) File No. BSNLCO-A/ 14(14)/2/2020-ESTABDated: 01.12.2020To,Heads of Telecom Circles/All Heads of metro Districts/All Heads of Administrative Unit, BSNL. Subject: Holidays to be observed in BSNL Offices during the year 2021- reg.