NEW DELHI India and China resumed direct flights on Sunday after a five-year suspension, a move important both for trade and a symbolic step as Asia's giants cautiously rebuild relations. IndiGo flight 6E1703 from Kolkata touched down in the southern Chinese city of Guangzhou shortly before 4:00 am (2000 GMT), officially resuming nonstop air links that had been suspended since 2020 due to the pandemic and subsequent geopolitical tensions. The neighbours — the world's two most populous nations —