The delegation comprised Deputy Minister for Economic Affairs and Employment of Finland Petri Peltonen, government officials and representatives of about 20 companies.
The delegation members began their trip by first visiting the Metro Bhawan near Connaught Place in central Delhi, DMRC officials said.
"At Metro Bhawan, a presentation was given about the journey of Delhi Metro and the various projects. They also interacted with Managing Director of Delhi Metro Rail Corporation (DMRC) Mangu Singh and showed keen interest on the working of the metro," a senior DMRC official told PTI.
"From there they went to Patel Chowk Metro Station and also visited the Metro Museum," another DMRC official said.
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Some members of the Finnish Embassy here were also present.
The Finnish delegation is being led by Minister for Environment, Energy and Housing Kimmo Tiilikainen, who earlier in the day addressed representatives of leading business houses from India and Finland at an event hosted by FICCI here.
India is "one of the fastest growing economies" having an "enormous economic potential", he said.
The average daily ridership of the 218 km-long network of the Delhi Metro, spread across multiple corridors, in June was 25.7 lakh.