Industrial training

Hello. I am a CA Final student having my final attempt on November 2017 and i plan to give only one group. I am working in a mediocre firm and I have been looking for industrial training in a good company. So recently i tried in Surya Roshni Ltd. and Gail India Ltd. Fortunately i have been selected in both. Now i have certain doubts in mind regarding leaves for exam which i wish to clear if anyone of you could please help. Surya offers 3 months while Gail offers 2 months. At this point of time when my exams are approaching what is more of a priority? No. of leaves or good exposure and better career opportunities? Are 2 months leave not sufficient for single group? moreover traveling time for Gail is twice the traveling time for surya. What is best at this point of time? please suggest.