Two of the murders were reported from South Bengaluru's JP Nagar, while the third fatality occurred in Bellandur in the southeastern parts of the city.
Amith, an MBA graduate from Shakambari Nagar, was stabbed by three men known to him while cutting a cake during the celebrations. The JP Nagar police said they had picked up one of the suspects and were questioning him to ascertain the motive. They surmise that some sudden provocation led to the crime.
In the other incident in JP Nagar, Hemanth Kumar, a driver, was stabbed to death by his friend, Amruth, near Sindhoor Convention Centre. The police have arrested the suspect, who is a resident of Sarakki Agrahara.
In Bellandur, seven people, including two minors, were held for murdering Shivaram, a painter from Kasavanahalli. Four of the suspects were identified as Vinod, Mohammad, Ramkumar and Santhosh.
On MG Road, a minor motorist was arrested for assaulting a cab driver. The cab had brushed against the suspect's car, leading to the scuffle.
A bouncer at a pub assaulted a customer after he broke a glass at the watering hole. The victim went to the Cubbon Park police station to file a complaint, but later reached a compromise with the bouncer.