Your in laws cannot claim any of your property. First of all, The property if it is registered in the name of a woman, it is her absolute property. Nobody(including parents, inlaws, husband or children can claim 1 square feet) of her property.
secondly, it appears that you have purchased the property using your parents savings . So that itself is additional evidence in your favour.
If your husband has earned his income and bought property, no one else can claim. Now that he transferred it in your name, it is all the more yours vide my first point.
surprised how your inlaws got an ad-interim order without the court hearing you. But from legal perspective, suggest you to enter defence by filing a written statement (within 30 days from receipt of summons) and also ask the court to vacate ad interim injunction.