As title says, beta has been started for BKL-L09C675 for Indian model. Once beta is over or build is stable enough, you may expect the public release. Initially it was for very less number of users but then it was opened for many who all filled the beta request form.
Someone from beta group has shared the update on firmware finder but that is not yet approved for installation as it is bound with IMEI.
Anyone still looking for applying for beta can fill this form if there is a slot, they may add you to the beta program (there are more chances of being able to join beta currently)