SpiceJet is in talks with aircraft makers for a jet deal.
Under new Chairman Ajay Singh, the airline has cut routes - its capacity is down a third since last year - and costs.
The airline was forced to ground its fleet in December after running out of cash.
Modi placed a $12.6 billion bet in this year's budget on road building
India's $100 billion push into solar energy over the next decade will be driven by foreign players as uncompetitive local manufacturers fall by the wayside, no longer protected by government restrictions on the sector.
India's Railways has struggled to expand to keep up with demand
The carrier planned to bring in a plane a month from March to build a fleet of at least 10 jets by the end of the year.
Roy will also have to submit his passport to the court.
To cover most of the gap, the road ministry plans to raise $7 billion.
Subrata Roy has been held in jail for more than a year.
Irked by India's status as the world's biggest arms importer, Modi wants to build an advanced defence industry
Prime Minister Narendra Modi signalled on Monday he would not bow to foreign pressure to commit to cuts in carbon emissions.
Modi government has pledged to lay 700,000 kms of broadband cable.
India's newest airline-Vistara is bullish on growth prospects.
SpiceJet was forced to ground its fleet and cancel hundreds of its flights in December.
Sahara told the court it was working on new deals to raise funds.
Search is on for reliable indicators of underlying activity.
India's latest GDP numbers do not signal robust economic growth in near term.
The prospective owners of Indian low-cost carrier SpiceJet Ltd plan to cut the airline's fleet, shrink its network and return to a "plain vanilla" business model to achieve profitability, two people close to the investors said.
Finance Minister Arun Jaitley last month pointed to the high cost of capital for India's businesses as a key factor behind a manufacturing slowdown.