Singapore Airlines on Thursday reported a sharp fall in first-half profit, hit by losses at its Indian associate Air India, higher costs and intensifying competition.The airline’s profit slid steeply in the second quarter to S$52 million (US$40.18 million) from S$186 million in the first quarter, highlighting Air India’s drag on performance.Singapore Airlines began accounting for Air India’s earnings in December 2024 after the integration of joint venture Vistara into Air India. The Singapore...