Transport exp included in tax invoice where gst is paid @5

We are in the mining business which deals in dolomite mining.Every day we sent invoices to our client .The bill details dolomite lumps @ Rs 820 per tonnes + gst @ 5%.
On this Rs 820 per tonnes ( Rs 660 - cost of goods sold + transportation charges @ Rs 160 per tonnes is included). Do we have to pay gst tax on transportation @ Rs 160 @ 5% on reverse charge basis( transportation done by road).can we claim itc on the truck purchase for transportation of dolomite lumps