Bihar Gk Rajya Me Sthit Sabse Lambi Nahar Pariyojana Hai

राज्य में स्थित सबसे लम्बी नहर परियोजना है - The longest canal project in the state is - Rajya Me Sthit Sabse Lambi Nahar Pariyojana Hai Bihar Gk in hindi,  Canals and Irrigation Pashchimi Son Nahar question answers in hindi pdf  Poorvi Kosi Nahar questions in hindi, Know About Poorvi Son Nahar Bihar Gk online test Bihar Gk notes in hindi quiz book    Pashchimi Kosi Nahar