As per ITT & TDS of the Standards tender documents
SDIRIIP/SUN/S OTR/W-041 a Improvement of Bangla bazar-Alipur Lepsia Khaliajuri by RCC road at Ch.7690-9950m b Construction of 2 Nos 1 vent 1.00x1.00m Box Culvert on the Same road at Ch.8400m & 9650m Under Derai Upazila District Sunamgonj.