"The discussions seek to deepen the existing partnership between SIA and Tata, and may include a potential integration of Vistara and Air India," Singapore Airlines said in a statement.
However, it added the discussions were ongoing and no definitive terms were agreed upon yet.
Singapore Airlines owns a 49% stake in Tata SIA Airlines, which operates Vistara, while the remaining 51% is owned by the Indian conglomerate.
Air India did not immediately respond to a Reuters request for comment.
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