The Sindesar Khurd ore body is conformable with the host stratigraphy. The mineralisation lies within silicified dolomite and graphite mica schist which are overlain by quartzite. The mineralisation has been traced over almost 2.5 kilometres along strike and 1.3 kilometre vertical extension. In the mine area, dip is steep westerly, while the dip turns into easterly direction in the lower-southern part of the deposit.

Access to the mine is through an incline shaft and declines (north and south) from the surface while ore is hauled through the declines by low profile dump truck or LPDTs. The ore body is accessed via horizontal drives on number of levels. The mine currently utilises blast holes stoping with back filling mining method with stope panels varying from 25 to 50 metres in strike.

The current mine block extends over 1,500 metres along strike and up to 420 metres depth extension.

Capacity of Sindesar Khurd mine to 3.75 mmtpa in fiscal year 2017.

Ore produced from the mine is treated at 2.0 mmtpa beneficiation plant commissioned in 2011 at Sindesar Khurd. Benefication plant has undergone debottlenecking in January 2015 to increase its capacity from 2 to 2.8 mtpa at Sindesar Khurd.

The ore is crushed at the surface and transported to the beneficiation plant for further crushing; milling; and flotation process. Lead and zinc concentrates are sent to their respective high rate thickeners installed separately for lead concentrate and zinc concentrate generated from the concentrator. Tailing dewatering and disposal section comprises of hydro cyclone, tailing thickener, neutralization tank, pumping of tailing to tailing pond and reclaimed water pumping. Lead and zinc concentrates are thickened, filtered and stored before they are sent to HZL’s smelters.