1.Maintenance of kerbs & channel of different street( over street no 278,302,275,306 etc.) in Action Area-ID under NKDA New Town, Kolkata in the year 2018-19. 2.Maintenance of kerbs & channel of different street( over street no 233,256,211,189,199,171,195,245,254,240 etc.) in Action Area-IC under NKDA New Town, Kolkata in the year 2018-19. 3.Maintenance of kerbs & channel of different street( over street no 323,298,263,286,300 & 279 etc.) in Acti