KOLKATA, 19 SEPT: Despite several campaigns by the West Bengal Pollution Control Board (WBPCB) to promote lead-free colours among idol-makers and even after many Puja committees have ordered for idols painted with such colours, the artisans are still apprehensive about using it this Puja.

The artisans have earlier tried the colours on Manasa and Ganesha idols but they are reluctant to use it o