Can Tarpan be performed at Brahmakapal for ancestors who died unnatural deaths?

Yes, Brahmakapal is considered a particularly powerful place for performing rituals, including Tarpan and Pind Daan, for ancestors who suffered untimely or unnatural deaths (Akal Mrityu) or whose souls might be restless. It is believed that performing Shraddha at Brahmakapal grants peace and liberation even to such souls, freeing them from negative states or realms (like Pretayoni) and helping them attain salvation (moksha).[3][5][9] The sanctity of the place is believed to be effective for all types of ancestral appeasement.