CRISIL Management Trainee interview questions

Applied through their website and following the shortlist of my resume, received an online link for an aptitude test. Received a call from the HR (Pranali Koli) that I have cleared my aptitude test and she wanted to know more about my profile. I asked her to call after 20 mins as I was travelling and there might be network issues during call to which she agreed. However, I never received any further call or follow-up from her post that. Even tried calling the same landline number multiple times but no one answered. Instead of informing that I have cleared aptitude test and yet not calling for further rounds, they could just have not informed me anything. Or at least have the courtesy to reply to my mail and calls if the position has already been filled up despite me clearing the aptitude test.