What does the Rajiv Gandhi assassination case have to do with the Ministry for Human Resource Development? Obviously, little. But two days into his job and Union HRD Minister Arjun Singh is pushing an agenda far removed from IIM autonomy or history textbooks: he has asked Prime Minister Manmohan Singh to get the probe into the ‘‘conspiracy’’ behind Rajiv’s assassination ‘‘back on track.’’ Singh’s request, which could embarrass ally DMK — only yesterday it got all the portfolios it wanted — has already prompted a flurry of high-level exchanges: the CBI director briefed the PMO yesterday and the Home Secretary held a special meeting today. This despite the fact that the ‘‘Multi Disciplinary Monitoring Agency’’ (MDMA), set up by the BJP government—and whose term expires on May 31—has found little, its staff virtually unemployed.Now, the MDMA seems set for another extension. The MDMA was set up after the Jain Commission indicted the DMK in 1998. This indictment was used by the Congress to pull down the Gujral government of which the DMK was a partner. Now that the DMK is the Congress’s ally—its member Subbulakshmi Jagadeesan, under MDMA scrutiny, was sworn in as Minister—what’s Arjun Singh’s provocation? ‘‘My impression is the MDMA concluded there was nothing substantial against the DMK,’’ Arjun Singh admitted to The Indian Express today. ‘‘There is nothing much in that (against the DMK).’’ However, he added: ‘‘The last government ran the MDMA in a mechanical manner. It should be given an extension, more importance and emphasis. There must be be a final report soon and more chargesheets.’’ When contacted, CBI director U S Mishra said: ‘‘The MDMA is an active desk of the CBI. Some investigations are in progress and at this stage I cannot rule out the possibility of a supplementary chargesheet.’’ Facts speak otherwise: Why ally DMK will be embarrassed