@RIT RAJARSHI, there is no machine translation for Santali anywhere on the web, unfortunately. This is not something that the developers of Content Translation can do all by themselves.
If anyone ever develops a machine translation engine for Santali, we may try to integrate it here.
Until this happens, Content Translation is usable without machine translation and provides useful features: display of the source and the translation side-by-side, one-click image and link adaptation, some template adaptation, and more. Indeed, Content Translation was used to translate more than 90 articles into Santali, and I hope that you use it to translate more, even if machine translation is not available now :)
See these pages for further information: