Selection of Consulting firms/Organisation for Hydrological and Morphological study for Premtala bridge at 1st km kirtinasha River and Kazirhat bridge at 16th km over branch of Arialkha Rever of Shariatpur-Jajira-koarakandi(katahlbari) Road (Z-8012) under Shariatpur Road Division, during the year 2016-2017.