Answer:
(Fatwa: 855/717=D/1430)
In order to finalise a proposal of marriage, it is lawful to get intermediation of a man or a woman. This thing is allowable through internet as well, but the things which are commonly unlawful in other matter will be unlawful there also. It is against modesty and haya for a girl to arrange marriage herself and it is unlawful to give her pictures to non-mahrams to see. Therefore, these things should particularly be kept in mind. Instead ofgiving the address and contact number of the girl, those of her parents should be given. Her picture should not be uploaded on the website, instead necessary information should be given. I do not understand what you mean by ?decent? and ?indecent? pictures. It is unlawful to have photography of any kind except the exigent and emergency cases. It is not right to give picture for a marriage proposal, neither it is lawful to publish it on website which can be seen by anyone. It is against the sanctity of women along with being against Shariah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
