Continue physiotherapy regularly. Do not lose hope.  And follow the advice and home exercise instructed by the physiotherapist, and perform. Recovering from paralysis not only depends on medical professionals but it's requires support from family too.  Encourage your mom to do exercise at home. Definitely soon she will recover. But time no one could predict. So follow as instructed by physiotherapist and doctors. Your mom will soon return to normal.

It's take time to recover  so keep continue your physiotherapy

It cant be said How much tym will it take to recover Improvement will be gradual

In neurology case not confirm when fully recover. Yes uh can take Panchakarma  treatment

That is injurey related to the brain it' ll takes time to recover as depend of age  group of patients if patients younger recovery will be fast but do physiotherapy proparly and do ADL of patient functional activities her self.

Neurological disorder vary person to person the recovery period we can't judge. Or can't give you estimated period of time. So just do all the doctors advice.