I highly doubt any Indian government wants or even thinks they can do this.
India in all its diversity, consists of a huge number of separate factions. The Government only works due to a mutual compromise from enough factions to form a coalition. Also, the Indian judiciary and parliament hold genuine power and exercise it too.
It is nearly impossible for a single person to gain enough momentum to even start being dictatorial.
Admittedly, Modi's government has consolidated more power in one person than most of India's past governments. But, even then it only in comparison to the nearly dysfunctional mega coalitions of the INC.
I don't like what is happening but it is far better than controlling the entire government from 10 Janpath.
I highly doubt that this is what the motive is. But I agree that this decision is very irresponsible and can have a disastrous impact. It could surely help in detecting a pattern which may put the nation in some sort of risk, but there is a greater and inevitable chance that it can be easily misused by the granted authorities or some personnel working for those authorities.