Question

i said to krishna, "how did you cross the river yesterday?"​

Answer 1

Answer:

Krishna how did you cross the river yesterday.

Explanation:

Its the only answer i could think of.

Answer 2

Answer:

I asked Krishna how he had crossed the river the previous day.

Explanation:

Here in the question it is not specified that we have to make it reported speech but I hope it will helo you.