Explanation:

Third option is correct.
Bharat Net Project is the new brand name of National Optical Fiber Network (NOFN) which was launched in October, 2011 to provide broadband connectivity to all 2.5 Lakh Gram Panchayats. It was renamed Bharatnet in 2015.
First option is incorrect. Bharatmala is the name given to a centrally-sponsored and funded road and highways project of the Government of India.
Second option is incorrect. The prime objective of the Sagarmala project is to promote port-led direct and indirect development and to provide infrastructure to transport goods to and from ports quickly, efficiently and cost-effectively.
Fourth option is incorrect. Under the project called CHAMAN (Coordinated programme on Horticulture Assessment and Management using geo informatics), the remote sensing technology and sample survey techniques will be used for production forecasting of major horticultural crops in select districts.