Hello aspirant,

No you can't repeat your HS again from different stream.

As you have studied 11th and 12th on a specific stream you can't change or repeat your stream in 12th. To repeat in a different stream you have to study again 11th and 12th in that stream.

According to me I redo you to not to change your stream as it will costs your 2 valuable years more. Instead of that you should follow different aspects of your stream only.

Hope it helps you..

Best of luck..