The Deendayal Upadhyaya Gram Jyoti Yojana aims to improve power supply in:

Urban areas
Industrial zones
Rural Gujarat
Coastal regions

The correct answer is: c) Rural areas.

The Deendayal Upadhyaya Gram Jyoti Yojana (DDUGJY) is a rural electrification scheme launched by the Government of India in 2015. The scheme aims to provide 24×7 electricity to all villages in India by 2022. The scheme has been implemented in three phases, with the first phase being completed in 2018. The second phase of the scheme is currently underway, and the third phase is expected to be completed by 2022.

The DDUGJY has been successful in providing electricity to millions of rural households in India. As of March 2020, the scheme has provided electricity to over 100 million households in rural areas. The scheme has also helped to improve the quality of life in rural areas by providing access to electricity for lighting, cooking, and other essential activities.

The DDUGJY is a flagship scheme of the Government of India that is aimed at improving the lives of people in rural areas. The scheme has been successful in providing electricity to millions of households in rural areas, and it has helped to improve the quality of life in rural areas.

The other options are incorrect because they do not represent the target beneficiaries of the DDUGJY. Option a) is incorrect because the DDUGJY is a rural electrification scheme, and it is not aimed at improving power supply in urban areas. Option b) is incorrect because the DDUGJY is a rural electrification scheme, and it is not aimed at improving power supply in industrial zones. Option d) is incorrect because the DDUGJY is a rural electrification scheme, and it is not aimed at improving power supply in coastal regions.