New Delhi, Nov. 3 -- The Centre can directly intervene on ticket pricing in extraordinary situations under a new set of aviation rules that also require airlines to disclose cancellation charges and refund conditions separately while displaying airfares to passengers. The provisions do not introduce a routine cap on airfares or require government approval for every ticket price. Hence, airlines will continue to determine fares in normal circumstances. The new framework does, however, provide for tariff submission and monitoring by the aviation regulator. P7...