Greetings Naveen,The chance of getting MCET is quite less as I am providing the marks required to get admission in MCET.

1.General- 193.25-181

2.BCM- 183.00-150.75

3.BC- 181.00-175.75

4.MBC- 173.75-156

5.SC 137.50-80.75

So,this the marks requirement check your sister's marks,if the marks are near about the above mentioned marks according to the category then go for the Counselling.But chances are little less.

Regards

Ankit!!