In December last year, the Bangalore-based company had announced to completely exit from the Istanbul Airport and its consortium partner MAHB had exercised the right of first refusal for acquiring GMR's stake in the venture for Rs 1,740 crore (Euro 209 million).
GMR had 40 per cent stake in the consortium, of which MAHB and Limak Holding were other partners.
Both, GMR and MAHB had signed definitive agreements under the existing shareholders agreement of Istanbul international airport on December 23, 2013.
This is the second major divestment of overseas assets by the GMR Group in over a year, it added.
"This divestment helps the group in capitalising on equity release of Rs 1,740 crore in addition to reducing the proportionate debt of Rs 1,412 crore (EUR 169.55 Million) carried in the balance sheet as well as guarantees to an extent of Rs 2,298 crore (EUR 276.03 Million)," the company further said.