(a) the airports in the country where air traffic was disrupted because of fog during the last two Winter seasons;
(b) the finanacial loss suffered by Indian Airlines including Alliance Air and Air India due to such disruption;
(c) whether the Government have any proposal to instal category III Instrument Landing System at these airports to facilitate take off/landing even in low visibility; and
(d) if so, the details of the airports on which the instrument is likely to be installed?