What kind of image and in whose eyes? Indians? We don't care.... International media? No words about the scanning of women and taking off their ornaments because they set the alarms off.. Because your women go through the same at airports.. Yesterday I saw Indian women at a gulf airport taking off their mangalsutra because alarms were ringing..
Now come back to OP, had you raised the same concerns if authorities here would have done the same what your authorities did to an Indian family in India? Probably not.. because for you, removing Mangalsutra is really a cruel act because the alarms were set off, forcing someone to perform sexual acts is acceptable..
Actually, our authorities should take notice.. this is the only thing that can satisfy you lot..