Can I perform Dashami Shradh for ancestors who died in a foreign country?

Yes, absolutely. Shradh is performed by the descendant for the ancestor’s soul — the location of the ancestor’s death does not affect the ritual’s validity or effectiveness. What matters is the correct procedure, proper sankalpa naming the ancestor, and the sincerity of the offering. Many NRI families have their ancestors who passed abroad and perform their Shradh at sacred Indian tirthas like Prayagraj through pandits like Prayag Pandits.