Sakthi Crackers sells 7 cm Green Sparklers for ~ ₹15 (one box / pack).
“7 cm Green Sparklers is a long stick-like structure coated with a sparkling composition which when lightened up – these sparklers produces amazing green coloured electrical stars.”
If you like, I can refine the search for Indian suppliers that specifically stock 7 cm green sparklers (so shipping is easier). Would you like me to fetch those?