Dear Naveen, your 10+2 marks have 50% weightage in determining your KCET rank.  KCET is conducted for 180 marks and the subjects score is calculated for 3000. To Calculate the rank, your KCET score and 10+2 score out of 300 will be taken into consideration. For example, if you scored 100 in KCET and 200 in your 10+2, by applying the formula {(%KCET+%PUC)/200}*100, you get your approximate rank. Considering all this, your theory score should be nothing less than 200-240 and your KCET score should be more than 100.

Hey there

Getting a rank below 5000 in kcet is not a tough task so if you'll score 130+ in kcet then you'll have fair chances of getting a rank below 5000 for 12th weightage you need to score more than 90% in pcm so that you will have edge over other students.

Check the link for kcet 2020

https://www.google.com/url?sa=t&source=web&rct=j&url=https://learn.careers360.com/engineering/kcet/amp/&ved=2ahUKEwjgho_p1ZvlAhXj7HMBHQzNAukQFjAKegQIAhAB&usg=AOvVaw09NfPiYERpE98PY57Y7ory&ampcf=1&cshid=1571053404088

Good luck