The Dowry Prohibition Act, 1961 envisages punishment for both giving and taking dowry. However, there is a saving clause that the complainant can not be punished for the same. The reasoning is that if the government starts punishing the complainant, no one would come forward to complain. This said, the same saving clause has led to many false complaints.
No one in my memory has ever been arrested for giving dowry, but there has been instances where the prosecution has been launched against people for giving dowry.
The case which you are talking about is famously known as "Nisha Sharma" Case. The said case was later proven to be false and bogus by the courts and the real reason which was ascertained by the court was that in that case lady wanted to marry someone else.
The interesting aspect is that after many years the same Nisha Sharma was made an accused by a case lodged for dowry harassment by her brother's wife, in which she was spared the arrest, but her brother was arrested.
You can google for many news reports on this.