SpiceJet and IndiGo have been offered nearly 10-12 unused slots of Jet Airways at Delhi airport for an interim period, sources in the know told CNBC-TV18.

A total of 150 flight movements have been affected at the busiest airport of the country due to the curtailed operations of Jet Airways with two-thirds of its fleet on ground and ban on Boeing 737 MAX planes due to safety concerns resulting in the grounding of 17 planes in the country, a senior government official said.

“Around 6-7 slots have been offered to SpiceJet and 4-5 to IndiGo for an interim period. This will be reviewed once Jet Airways expands its fleet,” a source familiar with the development said.

In fact, some unused slots of Jet Airways at the airports of five metro cities of Mumbai, Hyderabad, Kolkata, Chennai and Bengaluru have also been offered to other domestic airlines for a temporary period, sources added.

As the fleet size of the airline has been changing rapidly over the last two months, aviation regulator Directorate General of Civil Aviation (DGCA) has also approved the summer schedule for Jet Airways for a period of 26 days spanning from March 31 to April 25.

Usually, DGCA approves summer schedule of airlines for a period of six months, starting from last Sunday of March and ending on last Saturday of October.

The approved summer schedule of Jet Airways indicates that the airline has temporarily suspended operations to Abu Dhabi, Bahrain, Dammam, Dhaka, Hong Kong, Jeddah, Kuwait, Manchester, and Riyadh in international space.

In India, Bagdogra, Coimbatore, Khajuraho, Kochi, Kozhikode, Leh, Rajkot, Srinagar, Thiruvananthapuram, Udaipur, and Varanasi operations have been suspended temporarily by the troubled carrier.

Queries to Jet Airways, SpiceJet, IndiGo and Delhi airport remained unanswered till the time of publishing. The airline is yet to receive the interim funds necessary for sustaining its operations till the time lenders find a suitable investor.