Who is the writer of vah sakti hame do dayanidhe?

The line "वाह शक्ति हमें दो दयानिधि" is a famous line from the Indian national anthem, "Jana Gana Mana". The anthem was written by Rabindranath Tagore in Bengali.

It's important to note that "वाह शक्ति हमें दो दयानिधि" is a translation of a portion of the original Bengali lyrics: "তুমি দান করেছো ভারতবর্ষে / মহান শক্তি।" This translates to "You have bestowed on India/ Great power."

While Tagore wrote the original anthem, the portion you're referring to is a translation.