** Indian tourism stocks .NIFTYINDTOURISM shed 5.3% so far this week, their steepest weekly fall since early Jan
** Drop comes after U.S. and Israel launched strikes against Iran, which also resulted in the death of Iran's supreme leader
** Analysts say escalations in tensions to hurt travel demand, especially for domestic carriers like IndiGo INGL.NS, which gets 35%-40% of its international capacity from the region
** INGL down 8.6% so far this week, its steepest such fall in three months
** Visa services provider BLS International BLSN.NS drops 7.3% for the week; airports operator GMR Airports GMRI.NS falls 3%
(Reporting by Kashish Tandon in Bengaluru)
((Kashish.tandon@thomsonreuters.com))