hi,

see cutoff score changes in every year and it depends on certain factors like number of applicants, questions difficulty level, seat matrix, students category etc. however right now in India electronics and communication engineering , cse etc are demanding stream and students of high score holders are going for ece/cse. also it depends on the particular college or stream in any institute students have opted for. so thats the all reason of the cutoff score changing  in every year.