Safety devices on haulage road,shot hole pattern in a sinking shaft,plumbing or shaft centring arrangements for a sinking shaft,shot hole patterns,types of roof support by timber,chock with four corner props,chock release device,tapered props,side and roof support in a roadway,roof bolting,magnetic unlocker for flame safety lamp hand held type permanent magnet,tool kit for servicing and maintenance of flame safety lamp,flame proof lamp fitting for dark room of gas testing,drill rod and drill bit,air leg,lubricator,exploder dgms approved twenty five shot capacity resistance one hunderd fifty nine ohms, one and half a firing current, non volt battery, dc output five hunderd volt,scraper cum brake detector,stemming rod,metric chain size twenty meter,metric chain size thirty meter,engineering chain,revenue chain,gunter chain,steel tape fifteen meter,steel tape thirty meter,metallic tape,

Construction of 23 nos. brick pillars along haulage roadway and travelling roadway at 4-x-cut dip dev. district in narsamuda (r-x) seam workings at narsamuda colliery

Construction of brick wall along haulage roadway at 4x-cut dip dev. district in narsamuda (r-x) seam workings at narsamuda colliery

Construction of 65 meter brick wall along travelling roadway and haulage roadway of 50d/52l dev. dist. in narsamuda (r-x) seam workings at narsamuda &#x0d colliery &#x0d

Roof bolting at proposed travelling and haulage roadway of proposed 41 dip off 55l development section at dubeswari colliery as permanent support

Roof bolting at travelling roadway and haulage roadway for east section at parbelia colliery hijuli r-viii seam working

Construction of 18 nos. brick pillars along travelling roadway and haulage roadway of 50d of 52l dev.dist in narsamuda (r-x) seam working at narsamuda colliery under sodepur area

Construction of brick wall along travelling roadway and haulage roadway of stowing panel s-1 and 50d/52l dev. district in narsamuda (r-x) seam working at narsamuda colliery

Roof bolting at haulage and travelling roadway of jambad seam top section of porascole east colliery

Roof bolting in new travelling roadway and some portion of haulage roadway of 2and7 no inc. (gp seam) at shampur-b colliery.