L&T was among the five firms that forged a joint venture to bid for the project. The total order awarded to the JV is valued at $3.3 billion, but the share of L&T Construction's Heavy Civil Infrastructure business is valued at $740 million, L&T said in a statement.
Two firms from Turkey and one each from Greece and Qatar had formed the joint venture.
"This order, close on the heels of Riyadh Metro order, has been won in the face of stiff global competition and reflects the growing confidence of clients in L&T's capability to handle mega projects in the Middle East," said S N Subrahmanyan, L&T's Senior Executive VP (Infrastructure and Construction).
The Doha metro project is scheduled to be completed in 54 months. The contract includes the design and construction of twin tunnels for a length of 11 km and 9 underground metro stations including architectural finishes and mechanical, electrical and plumbing works," L&T said.
The project is among the main infrastructure projects of national interest as per the Qatar National Vision 2030.