As Water Resources Minister, Chaudhary is credited with the completion of Durgawati Reservoir in 2014, a massive irrigation project started in 1976 which got delayed by 38 years due to land acquisition and environmental clearance related issues. His tenure (2010–2015) saw no major floods after the
2008 Bihar flood. Under his leadership, the Water Resources Ministry launched eight river-linking projects at a cost of Rs 4442 crores. As
Speaker of the Legislative Assembly, Chaudhary brought 44 amendments to the Rules of Procedure and Conduct of Business, the most significant of them being the introduction of the concept of 'Confidence Motion' under Rule 109(A), wherein the Government of the day can move a motion to seek confidence from the House. Bihar is the only state in the country with a rule to deal with confidence motion moved by Government of the day. The
Nitish Kumar government, with BJP and other NDA constituents as allies, was the first to move a confidence motion in the Assembly, on 28 July 2017, to prove its majority in the lower House. He also amended rules to allow inclusion of
MLCs in House Committees dealing with financial matters. He introduced a Question Reply Management System (QRMS) for online receipt of questions from
MLAs and provision of answers by concerned Government departments through the same channel. To bring transparency in the recruitment policy of the Legislative Assembly Secretariat, he divested the Office of Speaker of powers of recruitment and awarded the job to a Central agency, also responsible for recruitment in
Parliament of India through a competitive and fair process. He has also initiated the implementation of the National e-Vidhan Application Project to make
Bihar Legislative Assembly paperless. He organized workshops to facilitate dialogue between the civil society and legislators for more informed lawmaking. He has also been organizing blood donation camps on the Assembly's foundation day wherein legislators donate blood for use by needy patients. Under his leadership as the Chairman of the
Commonwealth Parliamentary Association Bihar Chapter, the
Bihar Legislative Assembly successfully organised the annual conference of
Commonwealth Parliamentary Association India Region, attended by both national and international dignitaries, including Chairperson of the
Commonwealth Parliamentary Association Emilia Monjowa Lifaka. == Personal life ==