Hey Yamini.

CLAT scores are very unpredictable as is the examination itself. The paper pattenrn changes every year. Therefore the highest score changes each time. It is very difficult to say what the next years highest scores will be and what the cut offs  for each NLU will be. 

However the cut offs for previous years can be checked at various websites. https://law.careers360.com/articles/clat-cutoff

Hello Yamini, If you give ALL India Law entrance test (AILET) 2018 then for General cutoff demanded is in between 80-90 and for ST is in between 50-55... sometimes it happens that NLU does not participate in CLAT (Example - in 2017 NLU, Aurangabad did not participate in CLAT)...

This year NLU of Aurangabad/ MUMBAI/ Nagpur are participating in CLAT and their cutoff yet to be announced....

LINK of NLU based on rank cutoff - https://law.careers360.com/articles/clat-cutoff

All the Best