I wonder if instead of "tamarind concentrate paste" I can use dried tamarind soaked than mashed?

Thanks a lot for the info--and for your patience! Have a good weekend.

No, I mean drain out the pulp and use the thick juice. You do have to boil it however, soaking won't give you enough of the flavor.

Yes, it is totally okay (probably even better) to use dried tamarind rather than the concentrate. However, you really should boil the tamarind in a little bit of water, drain the resulting juice and use that. A golf ball sized ball of tamarind in 1/3 cup of water should do it. Draining out the pulp will keep the seed and fibers out of your keema.