I don't think Sharad's mom will leave her son's side no matter what...even when the truth comes out, she will be blame Mukti to causing her own rape...and prob say that boys will be boys....for Sharad's parents their appearance and reputation is the most important...they'll kill before they let the world find out about their dirty little secrets...
On second thoughts... yeah I think you're right. She's damn likely to say Mukti was tempting him, that she shouldn't go around sleeping with people, or boys will be boys