Guys !!! Oreo beta program is now available in india. Register for beta program n u will get update of oreo beta in software update. U will have to register through member app in notices. Register fast as it is first come first serve.
Open Samsung Members app. Then open Menu. Open notices. There will be recent notice of to register to oreo beta program. Then follow the instructions. After registering to beta program after some time go To Software Updates and manually search for update. U will get New update.