Hey Prashant.

With a score around 120-125 if you belong to the SC category then you seem to have a fair chance of admission in NALSAR as well has other top National Law Universities. A more accurate estimate can be made only after the ranks are declared or atleast the answer key is out. Just on the basis of estimate marks, you can't be 100% sure of your chances. It would depend a lot on the level of difficulty of the paper and competition this year. So you should wait for the ranks for a more accurate estimate. But still, as per previous year trends and considering that you have SC reservation you seem to have a fair chance for NALSAR.

Best of luck!