ANNA university would be a good choice for the people who have less score in jee but have scored very good in 12th class .Because the major focus over there is on your 12th merit in PCM.  Application form starts in the first week 1st week of may for tamil nadu students and for other state students it starts from 1st week of june. the marks in maths is taken out from 100 and physics and chemistry is taken out from 50- 50 ,so total becomes 200 and the merit is evaluated.if you belong to other state like northen states so the seats over there are fixed for such states but if you hail from south so you won't be having tough time getting admissions with good 12th merit.