TheVyapam scam dates back to 2007, with investigations in the case starting after some details came to light in 2013. Officers of the Madhya Pradesh Professional Examination Board (Vyavsayik Pareeksha Mandal, or Vyapam) were found to have been rigging a variety of eligibility tests for courses and recruitments for close to six years, perhaps for an even longer period.

http://www.thehindu.com/opinion/editorial/the-vyapam-scam-trail/article7383720.ece

The main reasons for such scams is inadequacy in the infrastructure. leading to inordinate delays.

Scaqms are not new. What is new is numerous suspicious deaths in the case. 

Now, more and more death reports are pouring in. Whoever spoke or acted against Vyapam were simply killed. Anyhow the CBI has taken up the case.

Now Mr. Shivrah has agreed for C.B.I. inquiry for the case. Hope, after C.B.I. inquiry everything will be clear.

http://navbharattimes.indiatimes.com/state/madhya-pradesh/bhopal/indore/madhya-pradeshs-chief-minister-shivraj-singh-chauhan-agress-to-recommend-cbi-investigation-in-vyapam-scam/articleshow/47971122.cms

Yes. Its good to have a CBI enquiry. It's only then the real culprits will surface up.

Vypam came into light in the mid - 1990's and the first FIR was filed in the year 2000. If a deep and independent investigation is done by C.B.I., then name of many politicians of different parties will come out.

https://en.wikipedia.org/wiki/Vyapam_scam

It's not the time to discuss where and how the Vyapam scam started. It's the time to probe deep into scam and expose the key players. And they should be punished in such a way, that no law offender dares to indulge in such heinous acts in future.

This scam going like suspense thriller movies, where the culprit tries to kill all the witnesses or the people involved in the case to keep himself safe. I think some powerful people are involved who are having approach from top to bottom.