After the father passes away the most right of being the Wali is the grandfather, is that right?
بِسْمِ اللهِ الرَّحْمنِ الرَّحِيْم
In the name of Allah, the Most Gracious, the Most Merciful
Yes, it is correct. When the father passes away then the paternal grandfather, if alive, will take the next position as the guardian (wali).
Al-Fatawa Al-Hindiyyah Volume 1 Pg 312
Only Allah knows best
Written by Maulana Nabil Khan
Checked and approved by Mufti Mohammed Tosir Miah
Darul Ifta Birmingham