SSR Criteria 4 4.1.1 K S H 4.1.1 Key Indicator 4.1.1 Photos Audit Report 4.1.2 2021-22 Audit report 2020-21 Audit report 2019-20 Audit report 2018-19 Audit report 2017-18 audit report 4.2.1 Lib Infrastructure 4.3.1 BSNL Inf 4.3.2 Stu Comp Ratio Audit Report 4.4.1 2021-22 Audit report 2020-21 Audit report 2019-20 Audit report 2018-19 audit report 2017-18 Audit report