Despite 5 weekly flights to Chennai, British Airways has no longer office in Chennai. Previously a one man's office was installed in Citi Center, but since the 1st of August this office has closed down. British Airways now solely redirects its customers to a customer service call center in Delhi: 91 98403 77470
An e-ticket can still be easily modified online, but when it comes to making changes for paper tickets some problems might arise.
Firstly the customer number is not always reachable and though you might be calling the right number, sometimes you'll get the message that the number doesn't exist or is currently too busy. They also might put you unusually long on hold.
Second, if changes have to be made to your paper ticket, British Airways in Chennai will redirect you to the American Airlines Office in Chennai, located in a small side alley from Anna Salai, near Spencer's Plaza. The service there is actually quite good and better than what BA provides.
Third, several complaints have been filed against BA in Chennai for their poor customer service in Chennai. Please be patient and remain calm.
Good luck!
