Tamarind paste?!

Tamarind paste?

Alright I need tamarind paste for a Chicken Pad Thai recipe and I haven't been able to find it, I've checked in supermarkets, Asian food stores, and specialized food markets and haven't had any luck. Any other suggestions to look around? If not, then does any of you know how to make it from scratch? I mean, I have been able to find tamarind juice but idk would that make the noodles come out all watery and stuff. Any help would be appreciated.

Any Indian grocery store will have it: tam paste, tam powder and tam concentrate...

PS: otherwise, heat the tam juice on med low heat and when it comes to a gently boil, whisk in some cornstarch or arrowroot. It will thicken as it comes to a full boil without altering the taste.