Which poem was written by Rabindranath Tagore when he eight years old?

There is no record of Rabindranath Tagore writing a poem when he was eight years old. He began writing poetry at a very young age, but his earliest known works were written when he was a teenager.

It's possible that there is some confusion or a misunderstanding about the specific poem. If you have any more information about the poem in question, such as its title or a few lines, it might be easier to determine if it was truly written by Tagore at that age.