bids are invited for custom bid for services - horizontal drivage of size as per tender document quantity 576 rmt , custom bid for services - drivage shaft of x cut size as per tender document quantity 55 rmt , custom bid for services - winze size as per tender document quantity 216 rmt , custom bid for services - extra excavation for concreting quantity 919 cmt , custom bid for services - concreting of horizontal drivage and winze quantity 751 cmt , custom bid for services - filling and spreading quantity 2799 cmt----underground horizontal drivage shaft x- cut and winzes at 30 level ( 2nd level ) and 130 level ( 3 rd level ) for interconnection of 1 vertical shaft to 2 vertical shaft