Uppiliappan..

Lord Uppiliappan - is another incarnation of Lord Vishnu and is considered as the elder brother of Lord Tirupati Balaji. Thus, any prayers pending for Lord Balaji is accepted by this Lord as well.

I remember my grandpa being very emotional after he completed this picture, since He is our family God.

The history of this Lord is very interesting that I had heard since I was a child.
I would suggest the interested readers to have a look about this temple in wiki, when you find time -  https://en.wikipedia.org/wiki/Uppiliappan_Temple