@rekhaannvarghese,
Wow Rek tht's a real toughie. I'll try but it's
sheer guesswork
If I bring a significant number of decorative stones from another state, I'm supposing the shipment shouldn't be taxed since they're for personal use. So I plan a letter asking Check Post to verify, especially since it's intended for renovation of our church (which incidentally is registered under a Community Union)
...even though I have not the slightest idea what's a Check Post or a Community Union