[dubukh]

The husband has to take sandhiya to an men orphanage and ask all old men there to fuck his wife for one month as charity.

This is possible. Also we have to remember that the husband values safety of his wife first than everything else. But still, he can bring her to Old Age home for men and do the unimaginable

Instead of it he can take his to the street and declare anyone can fuck my wife anytime they wish

But this is NOT at all possible bro. Then she will be known as whore all over the town, including her mother and this will kill the heroine's character just for the sake of more erotic in the story. Further as I said earlier, he values the safety of his wife more and hence he will never do that nasty thing in my humble opinion