1)Cleaning & removing of water hyacinth and semi solid materials and silt from peripheral canal No-C from temporary culvert near East Enclave to the tail end of AA-IA under NKDA, New Town, Kolkata. 2) Cleaning & removing of water hyacinth and semi solid materials and silt from peripheral canal behind East Enclave to the junction of Pass khal near AF & AC block in AA-IA under NKDA, New Town, Kolkata.