SpiceJet on Monday operated India's first test flight powered by biojet fuel, according to the airline.
A Bombardier Q400 aircraft, partially using biojet fuel, took off from Dehradun and landed at the Delhi Airport.
SpiceJet said it successfully operated "India's first-ever biojet fuel flight".
The flight was powered with a blend of 75 per cent air turbine fuel (ATF) and 25 per cent biojet fuel, SpiceJet said.
In a release, SpiceJet said the advantage of using biojet fuel as compared with ATF is that it reduces carbon emissions and enhances fuel efficiency.
Made from Jatropha crop, the fuel has been developed by the CSIR-Indian Institute of Petroleum (IIP), Dehradun, SpiceJet said.
Around 20 people, including officials from aviation regulator DGCA and SpiceJet, were in the test flight. The duration of the flight was around 25 minutes, according to an airline executive.
SpiceJet Chairman and Managing Director Ajay Singh said biojet fuel is low cost and helps in significantly reducing carbon emissions.
"It has the potential to reduce our dependence on traditional aviation fuel by up to 50 per cent on every flight and bring down fares," he said.
The biojet fuel has been recognised by American Standard Testing Method (ASTM) and meets the specification standards of Pratt & Whitney and Bombardier for commercial application in aircraft.
The Q400 aircraft has 78 seats.
According to global airlines' body IATA, the aviation industry contributes to two per cent of the total global greenhouse gas emissions.
IATA has also set out a target for 1 billion passengers to fly on aircraft using a mix of clean energy and fossil fuels by 2025, the release said.
SpiceJet has a fleet of 36 Boeing-737NG and 22 Bombardier Q400 planes. On an average, it operates 412 flights daily.