" After one month of above communication, her husband is sending notice through his advocate to join matrimonial home in 30 days.."
--- this portion of your msg is really pathetic.
i understood that - the husband understood his wrong; his mistakes; and ask her wife to return back to her.
--- a similar case i know, where talak pronounced thrice by husband and a few days after the spouses understood the mistake. when they went to sleep at night, their neighbours and relatives took objection. but they were strict to remain as spouses, as a result they converted into hinduism.
after completion of talak, according to mohamedan law reunion not allowed.
if the spouses ignore the matter by saying that he not pronounced third time, let this false be true.