Inventory are broadly subhead of Raw material, Work in Progress, Finished Goods and Store. That details are provided in annual report. In six monthly,all these four heads are aggregated and appear as inventories in balance sheet. Hence, about break up between work in progress/finished goods/raw material, one has to ask sepcific question on conference call.
About specific point on inventory, please refer to my old comment in May 2015 after reading annual report for FY15. I am enclosing link to same for your refrence.