Does Shankha get engaged to Sreshta as soon as she returns?
When does he realise he loves Mohor?
No he doesn't. Bengalis don't have the ritual of engagement. But his family is definitely after him to agree to the marriage. She joins the college as a lecturer.
@bold: During the holi track he says to her something like "you changed my life" but I don't remember him accepting to himself that he loves her. We get to know about it through his longings and jealousy.