This post is also available in: हिन्दी (Hindi)
Usually, in criminal law it is upon the person making the complaint to prove that the person they are accusing has committed the crime.
But in cases of dowry the person against whom there is a complaint has to prove that they are innocent.
For Example, if Simran makes a complaint that Raj has asked her family for dowry, then Raj has to prove that he has not asked for dowry.