Greek Prime Minister Alexis Tsipras conceded defeat on Sunday after a partial vote count showed the opposition conservatives comfortably winning the first parliamentary election since the country emerged from its international bailouts.The New Democracy party of Kyriakos Mitsotakis had 39.7 per cent of the vote compared to Tsipras’ Syriza party with 31.5 per cent after nearly 60 per cent of ballots were tallied.The result was a stinging blow to Tsipras, who insisted he could overturn a sizeable…