Concept:Bharatmala is a highway development project aimed at enhancing road connectivity across India.
Explanation:It is the second largest highways construction initiative in India, implemented by the Ministry of Road Transport and Highways.
Under this project, about 50,000 km of highway roads are targeted for development.
The focus is on improving road connectivity on economic corridors, border areas, and remote regions.
This facilitates faster cargo movement and boosts exports.
Other options: Sagarmala is for port‑linked railways and ports (interlinking ports and railways).
Urja Ganga is a gas pipeline project by GAIL (interlinking cities with gas pipelines).
Interlinking of rivers is a separate water‑management project.
Hence, Bharatmala is explicitly about improving road connectivity.
Answer:Option A (Improving road connectivity).