Air India today cancelled over 30 domestic and international flights operating out of various cities with the agitation by its executive pilots continuing for the second day. The national carrier cancelled 17 flights from the national capital, five each from Mumbai and Chennai and four from Kolkata.<br/>According to an Air India official , as per the contingency plan, flights on those sectors which have low passenger load or on which there are alternative flights have been cancelled .The airlines had to cancel the flights as pilots did not report to duty citing health reasons. However, Air India officials in Mumbai maintained that they cancelled five flights due to technical reasons. <br/>Protesting against a cut of up to 50 per cent in their performance-linked incentives (PLI), and payment of their due salaries of last three months, senior pilots have boycotted their work by reporting sick since yesterday.<br/><br/>