Construction 03 ( three ) Nos. Steel Gate along with fitting at 0 dip between 22 and 23 level of SP Middle Seam, 4th dip between 22 and 23 level and 9th tugger dip between 22 and 23 level of SP Top Seam & 02 ( Two ) Nos. of Steel Gate/ Door fitting along with brick wall at 2nd dip of 21st level in Drift A and 4th dip of 22nd level in Drift B through 27/ 28 incline of Hariajam Colliery.