I guess you got to learn this word from your General who claimed to have carried out one just across the Line of Control in Pakistan Kashmir and which Pakistan denies having taken place. Since a "surgical strike" needs much planning and is carried out with precision, this case also reflects that from the husband's side.
From what I feel and believe, there is nothing the wife can do but to accept her fate and return back to her home country. If you seek the help of lawyers, they will just make money that's all and you will get no gains. Also, I doubt very much if the court in Qatar will entertain this case.
Sad it sounds, possibly the relatives of both parties in India can get involved, help settle the dispute and bring the couple back together, as is the usual practice in your part of the world.