How did Kritika Jain from IIT Bhubaneshwar managed to clear both IIM Ahmedabad and UPSC simultaneously(in her first attempt) considering both have completely different syllabus?

Although the two entrance exams CAT and UPSC have an entirely different syllabus. Most of you do not accept that CAT is a test that just checks your aptitude. It has been noticed that many of the candidates with apparently good English and Maths scored more than 99.9 percentile without putting in a lot of effort into their preparation. 

Following were the reasons that helped Kritika Jain to crack both CAT as well as UPSC in her first attempt were:

• She mainly focused on UPSC during her preparation phase.
• Since she had put all of her time and energy into UPSC, she was able to clear it by her dedicated hard work. 
• Clearing CAT requires aptitude which Kritika was good at. Hence, her talent helped her clear CAT without any extra hard work.
• IIM Ahmedabad interview merely requires a decent hold on your subjects, general knowledge that you get from UPSC itself, communication skills, and obviously, confidence.
• Kritika prepared for the UPSC interview so she didn't have to prepare separately for IIM A, thus making it much easier for her to clear IIM Ahmedabad.

You should try to understand that I’m not preaching here that it is ideal to sail two different boats when it comes to acting in such exams, but it is also not recommended to give up before trying only because of the fear of failure. 

Moreover, the first attempt of the candidate has its own advantages, such as positivity and being full of energy. If you have a fixed goal with a strong focus, you can even crack UPSC in your first attempt. Hence, giving up your fear will definitely push you to give your best in any exam.