Zonal works i.e. execution of (a) new work additions, alterations to the existing structures, special repair works and supply of building materials subject to costing of each such work not exceeding rupees 5 lakh and (b) all works ordinary repair and maintenance works for maintenance of Service buildings, Staff quarters and colony for section from Adra(ex) to Bankura(ex) and from Bankura(ex) to Masagram(ex) under the jurisdiction of SSE(Works)/Sonamuki for two years.