"Surprise visit to the T1 terminal of Delhi airport. Closely studied infrastructure and facilities for passengers," Sinha tweeted today after the visit.
The Delhi airport is operated under the joint venture company, Delhi International Airport Limited (DIAL), in which diversified group GMR, Airports Authority of India (AAI) and Germany's Fraport are the stakeholders.
Sinha, who moved to Rajiv Gandhi Bhavan from North Block following the July 5 Cabinet reshuffle by Prime Minister Narendra Modi, had last week conducted review meetings with the ministry officials to understand the opportunities and challenges in domestic aviation sector.
Delhi Metro Rail Corporation (DMRC) authorities had said the incident happened when a portion of the pipe that supplies water to the cooling system was damaged during the construction work for the upcoming station's entry and exit points.