See here: வலà¯à®²à®®à¯à®¯à®¿à®²à¯ à®à¯à®µà®¿à®²à¯ à®à®¤à¯à®à®³à¯http://www.vallamai.com/archives/5785/ Those who do not know Tamil, here is the brief of the story: Liquid ammonia cleaning was done instead of Sand blasting in a famous Shiva temple, near Nagapattinam. When the priest protested on making other community members work for cleaning, we took it to our stride and did the cleaning. After the job was over, the priest turned out to be a reformed person! Both the boys who did the cleaning along with Chandra are pursuing Ph.D in Archaeology.