Correct Option: D

According to 1991 Census, of the million-pluspopulation cities, i.e. more than 10 lakhs, the highest literacy rate was recorded of Kochi (94 per cent), Greater Mumbai (82 per cent), Chennai (81 per cent) and Delhi (76 per cent) respectively. According to 2011, census, the highest literacy rate was recorded of Kerala (94%) and lowest literacy rate was recorded of Bihar (61.8%).