Following is the chronology of events in the 1994 espionage case in which the Supreme Court Friday held that former ISRO scientist S Nambi Narayanan was "arrested unnecessarily, harassed and subjected to mental cruelty" and ordered a probe into the role of erring Kerala police officers:
*Oct 1994: Maldivian national Mariam Rasheeda arrested in Thiruvananthapuram for allegedly obtaining secret drawings of ISRO rocket engines to sell to Pakistan.
*Jan 1995: ISRO scientists and businessmen released on bail; the Maldivian nationals continue to be in custody.
*Apr 1996: The Central Bureau of Investigation (CBI) files report before a Kerala court, says espionage case is false and there was no evidence to back the charges.
*May: Court accepts the CBI's report and discharges all accused.
*Jun: Kerala government decides to conduct re-investigation of the case by the State police which was challenged by Chandrasekhar.
*Nov: High Court of Kerala dismisses the challenge, upheld government's notification which was later quashed by the Supreme Court.
*May 1998: Supreme Court awards compensation of Rs one lakh to Narayanan and others, who were discharged in the case; directs the state government to pay the amount.
*Apr 1999: Narayanan approaches the National Human Rights Commission (NHRC) claiming compensation from the state for the mental agony and torture suffered by him.
*Mar 2001: NHRC awards an interim compensation of Rs 10 lakh, asks the state to pay damages; government challenges the order.
*Sep 2012: HC directs the state to pay Rs 10 lakh to Narayanan.
*Mar 2015: HC leaves it to the state government to consider or not the CBI's report for taking disciplinary action against the erring police officers.
*Apr 2017: The Supreme Court begins hearing on Narayanan's plea, seeking action against former Kerala DGP Siby Mathews and others who had probed the matter.
*May 3, 2018: Three-judge bench comprising of Chief Justice Dipak Misra, Justices A M Khanwilkar and D Y Chandrachud says it is considering awarding Narayanan a compensation of Rs 75 lakh and restoring his reputation.
*May 8: SC says it is considering asking Kerala government to reinvestigate role of SIT officers in the case.
*May 9: SC says Narayanan has faced a dent in his reputation due to "malafide prosecution" and Kerala government cannot evade "vicarious liability" to grant him compensation.
*Jul 10: SC reserves verdict on the plea; CBI tells SC it was ready for a Supreme Court-monitored probe into the allegations by Narayanan.
*Sep 14: SC awards Rs 50 lakh compensation to 76-year-old Narayanan for being subjected to mental cruelty in the ISRO spy case.
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