Sayyed Mohammad Al-Musawi,
Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to religious questions. In the past, he has also spent significant time in India guiding the community.
Yes it is not only allowed but also recommended to feed people and gift the reward to the soul of the deceased. The Prophet (SAWA) himself used to feed on behalf on deceased Muslims as you can find it is Sunni and Shia books.
'Reciting Du;a is always recommended as well.