Which of the following companies has recently organized a ‘Bijli Utsav’ in Manipur to mark four successful years of the Deen Dayal Upadhyaya Gram Jyoti Yojana (DDUGJY)?
1
National Thermal Power Corporation
2
Coal India Limited
3
Power Grid Corporation of India
4
Oil and Natural Gas Corporation Limited
5
Rural Electrification Corporation Limited