(Reuters) -Indian airline IndiGo will add 10 international destinations and broaden its business class offerings overseas this year, CEO Pieter Elbers said on Friday, ramping up competition with rival Air India.

The move marks a fresh push by IndiGo to tap into premium international travel, a space long dominated by Tata-owned Air India.

IndiGo, which holds nearly 60% of India's domestic market, flew 1.8 million international passengers in the October-December quarter, just behind Air India and its budget unit's combined 2 million, DGCA data showed.

The company will add business class seats on routes to Singapore, Phuket and Dubai, CEO Pieter Elbers said at an event in Delhi on Friday, without specifying the Indian departure points.

The airline also plans to expand its long-haul network later this year with new destinations including London, Copenhagen, Athens, and Southeast Asian countries and cities like Hanoi and Cambodia.

Earlier this year, IndiGo said it aims to increase international seat capacity and expand its fleet to over 600 aircraft by fiscal 2030. It has also signed a deal with Bengaluru International Airport to develop maintenance, repair and overhaul (MRO) infrastructure to support this growth.

(Reporting by Abhijith Ganapavaram in New Delhi and Manvi Pant in Bengaluru)