The order includes supply of material for overhauling of 18 power turbines through 'Zero Hour Overhaul' and 'Time Continued Overhaul', Siemens Ltd said in a statement.
According to the statement, the Zero Hour Overhauling will be first of its kind in India and involves the overhaul of power turbines to zero hour status.
Traditionally, ONGC power turbines are undergoing a Time Continued Overhaul where after overhauling, the turbines can run for another 50,000 hours before the next overhaul, it said.
Siemens focuses on the areas of electrification, automation and digitalisation. It is a producer of technologies for combined cycle turbines for power generation; power transmission and distribution solutions; infrastructure solutions for smart cities and transportation.
Siemens has 21 factories located across India. Siemens Ltd in which Siemens AG holds 75 per cent of the capital, is the flagship listed company of Siemens AG in India.
As of September 30, 2016, Siemens Ltd had a revenue of Rs 1,08,089 million and 9,580 employees.