Hello There ,

In order to clear JEE Advanced you need to clear the overall cutoff and the sectional cutoff.

The overall cutoff varies each year and is usually around 100 marks , it is decided by the difficulty of the paper and the total marks that the paper is of as it varies every year .

Sectional cutoff of each subject is around 12 marks , and you need to get this many marks in each subject to qualify JEE Advanced .

To get IIT you need to score a minimum of 130 marks(according to last year cutoff ) .

To get IIST , IISER you need to get at least 120 marks , although much higher for IISC as it is the best research college in the country .

To get RGIPT  and IIPE , you need to get  a minimum of 115 marks in the paper .

All the above mentioned colleges are one of the best institutes of the country and it would be excellent if you get admission in these institutes .

Hope it Helps and ALL THE BEST .