** Shares of major Indian Banks advance post S&P upgrade; Banking index .NSEBANK rises 1.2%, financial index .NIFTYFIN up 1.5%
** S&P Global upgrades ratings for ten Indian financial institutions including HDFC Bank HDBK.NS, State Bank of India SBI.NS, AXIS Bank AXBK.NS and ICICI bank ICBK.NS on August 14
** S&P expects asset quality of Indian banks to remain healthy
** Insolvency and bankruptcy code has improved the payment culture and rule of law in India, says S&P
** Move follows S&P's upgrade of India's sovereign rating
** YTD, banking index .NSEBANK up 10%, financial index
.NIFTYFIN up 13.75% vs Nifty 50's .NSEI 5.5% gain
(Reporting by Komal Salecha)
((Komal@thomsonreuters.com))