new firmware 6.0.A.3.75 for Indian Xperia S is available on PC Companion. I am downloading it now and after downloading and flashing I will upload .ftf file and will post downloading link here.
Download link for full single firmware .ftf zip f...
Here is the link of SXS LT26 India 1257-6758 .73 generic firmware .ftf file link-
updated and replaced with .75 India firmware
Indian 6.1.A.2.45 ftf file -
Here is the download link for 6.0.A.3.75 Indian generic (stock) firmware .ftf file -
https://hotfile.com/dl/158576489/e008c61/XperiaS_LT26_6.0.A.3.75_India.zip.html (updated in first post)
those who are interested in indian .73 generic firmware please follow this link for .ftf file-