Figures are in Million
Excellent working capital management, Advance from customer increased from 26 crore 2014 to 76 crore in 2015 (this reminds of eicher from 2009/8 onwards advance from customers increasing), company getting 70% repeat customers and increase in gross margin indicates customers accepting price hike which speaks quality product and after sale services.
WCAP/Sales from 0.24 to 0.17 speaks of asset light in my view.