Delhi Police has arrested Lavkesh Bajaj, owner of the hotel building in Malviya Nagar where a devastating fire killed 21 people on Wednesday, officials said.
Bajaj was arrested hours after the blaze ripped through the Flourish Stay B&B in the congested Hauz Rani area in south Delhi.
Police had earlier issued a look-out circular (LOC) against Bjaja and his wife, and launched an operation to trace them.