You can listen to Prof. Balaram talk about rankings..the video is nearly for 2 h (including the question-answer section). Below is the youtube link
Ranking Indian Institutions : Choosing Courses for Horses
Prof. Balaram, as usual, is clear and critical. He says that these lectures should not be held in INSA because no practicing scientists attend these talks in INSA. He points out clearly the problems with the administration of the universities.
Prof. Balaram is really one of the very few people to understand rankings. As he clearly says in the talk, we can not move up the rankings unless we understand these rankings. People think it is very easy to understand rankings by just looking at the final numbers. It is important to understand the methodology and the fine print.
For example, in the BRICS rankings released this week, IISc is ranked 25 but fares poorer in citation scores than IIT Roorkee. Why? The number of citations, number of citations per faculty, number of citations per paper etc. are all higher for IISc compared to IIT-R but then why does it score lesser? Well, I am not giving the answer here but that is something administrators who indiscriminately talk about rankings should understand. They should spend time reading the methodology used and understand all the fine print or at least contact people who understand this.