In a statement the airline said that the undertaking given to PNB is "an undertaking of non-disposal of any further equity and not a matter of pledging of his shares".
"Jet Airways would like to categorically state, for the benefit of all its stakeholders, that the undertaking given to PNB implies that the airline's promoter and chairman will not dilute his equity, by way of a sale, below 51 per cent at any time, and will continue to be the majority shareholder in the airline," it said.
A pledge with such an undertaking means that the bank can't sell these shares and the holding would continue to remain in the name of the person or entity pledging the shares.
While the reason for pledging of shares was not disclosed, this came at a time when the aviation sector is going through tough times. Low-cost carrier SpiceJet is currently in financial trouble, while Kingfisher Airline has been grounded since October 2012.
A new player Air Vistara recently entered the sector as a full-service carrier, intensifying the competition and triggering a fresh round of airfare war -- a frequent phenomenon in this otherwise ailing sector.
UAE based Etihad holds 24 per cent stake in Jet as a strategic partner which it bought last year, while the remaining shares are owned by institutional and retail investors.
The Jet stock was trading about 0.5 per cent down at Rs 462, after recouping initial losses.
