hi,

sorry to say she is not eligible right now as in recruitment criteria it is given that,

for 2019 ba llb admission category wise year of 10+2 pass criteria is

for general category,  students who passed h.s exam on 2017-2019 is eligible,

for sc/st-  candidates who have passed 12th course 2015 - 2019 are eligible.

now there is all india entrance test clat exam is available which has no upper age limit or any other criteria like passing years of 10+2 course, your sister may apply for clat exam for 5 years integrated llb course,

clat 2020 form filling is already started and will end on 31 march, 2020.

https://law.careers360.com/articles/clat