Under which legal provisions Rahul was detained? asks Digvijay

Congress leader Digvijay Singh today attacked the Modi government over the detention of party vice president Rahul Gandhi, asking under which provisions of law was the action taken and whether any FIR has been registered against the "illegal detention".
"Can Delhi Police pl tell us under which provisions of Law was Rahul Gandhi detained thrice in two days?
"Can Delhi Police pl explain why they are not registering FIR against the illegal detention of Rahul Gandhi (sic)?" he said in a series of tweets.
Raising a number of issues, he asked "Is it a crime if a political leader wants to participate in a peaceful candle march in memory of an ex-serviceman?"

"Is it a crime for a political leader to visit the family of an ex-serviceman who committed suicide for not getting OROP?" he asked.
Singh wondered if the police behaved like this with an MP and Vice President of Congress party in Delhi, what must be happening to a common man in rural area.