Festival · All traditions · East India · Bengal, Odisha, Assam, Jharkhand, Tripura, Nepal
Vishvakarma Puja
The yearly worship of Vishvakarma by craftsmen, mechanics and factory workers. It is fixed by the sun: Kanya Sankranti, the last day of the Bengali month of Bhadra, which is 17 September in most years. Tools and machines are garlanded and rested, and Kolkata flies kites. In north and west India he is honoured the day after Diwali; the Vishvakarma craft communities also keep Rishi Panchami for him.
Sources: Wikipedia: Vishvakarma; Vishvakarma Puja; Vishwakarma (caste); Hindu Blog: Why is Vishwakarma Puja celebrated on September 17?; The Space Ink: Kite Flying and Vishwakarma · see Vishvakarma Puja's web