बिहार के उत्तरी मैदानी भाग में पश्चिमी से पूर्व की ओर बढ़ते क्रम में दोआब का सही क्रम है 1 घाघरा-गण्डक दोआब 2 गण्डक-कोसी दोआब 3 कोसी-महानन्दा दोआब - The correct order of doab in the northern plains of Bihar in increasing order from west to east is 1 Ghaghra-Gandak Doab 2 Gandak-Kosi Doab 3 Kosi-Mahananda Doab - Bihar Ke Uttari Maidani Bhag Me Pashchimi Se Poorv Ki Or Badhte Kram Me Doaab Ka Sahi Kram Hai 1 Ghaghra - Gandak Doaab 2 Gandak - Kosi Doaab 3 Kosi - Mahananda Doaab Bihar Gk in hindi, Geographical Structure 1.3 , 2 Sahi Kram Hai question answers in hindi pdf 3 , 1 , 2 Sahi Kram Hai questions in hindi, Know About 1 , 2 , 3 Sahi Kram Hai Bihar Gk online test Bihar Gk notes in hindi quiz book 3 , 2 , 1 Sahi Kram Hai
Manoj kumar Bhagat