I would like to ask you another question. On the altar, when we are offering water, milk, food to the actual deities, should (obligatory) we offer food, water and milk to the image of the spiritual master?

Should (obligatory) we offer milk and water to the images of the Panca tattva, Lord Nrsimha?

If there were special installed Deities of Nrisimhadev and Pancha Tattva then we have to keep special plates for Them also.

But if photo image is there then it is ok just keep plates with food to Your Shri Shri Radha Krishna. And in the end of offering we chant pranama mantra to our Guru and Srila Prabhupada which means they also should accept whatever was offered to the Lord.

So no need for separate plates.

Your servant,