 Nil Nirjane included a performance by the Bengali band from what Indian city?
Nil Nirjane:  "Nil Nirjane" also saw the performance of Cactus, a Bengali rock band of Calcutta. Cactus (Indian band): Cactus (Bengali: ক্যাকটাস) is an Indian Bengali rock band from Kolkata, West Bengal, India.
Kolkata