If Maharashtra boasts the country’s largest public transport fleet, it has also earned the dubious distinction of being the top killer on roads last year, causing 3,407 mishaps. What’s worst, Maharashtra State Road Transport Corporation (MSRTC) also recorded the highest increase - of 203 - in road accidents during 2010-11, while Tamil Nadu saw the largest decline — of 172 mishaps — during the same period, according to a review of the performance of State road transport undertakings (SRTUs) by the Union Road & Transport Ministry.