I like Dr jens super paste, it was one of the only ones I was able to find that has the 10% concentration that's been shown most effective in clinical trials. Apagard Royal does too but that's pricier

Nothing has worked for me so far but just discovered Dr Jens so I'm hopeful and glad to see it worked for you!

You can get the Indian version of sensodyne with novamin on Amazon. It’s not particularly cheap though.