The hastily-formulated coal ordinance by the Centre to auction over 200 mines that were deallocated by the Supreme Court in 2014 was criticised on several occasions by the high court which once observed that though the "ordinance was completely in sync with your (govt) economic policy, but your executive decisions are not".
Apart from the coal-based industries, another corporate sector which consumed high court time was the pharma sectors with major drug companies battling over who can be permitted to make medicines for diseases like diabetes and cancer which afflict a large percentage of Indians.
However, these pharma matters hardly proved fruitful for Indian generic drug makers like Cipla and Glenmark, who were stopped by the high court from making cheaper variants of respiratory, diabetes or cancer drugs and antibiotics in which patent was held by some other pharma major like US-based Merck Sharp and Dohme (MSD) or Swiss firms Novartis and Roche.
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The government had denied security clearance to Digital Radio as Kalanithi Maran and former Telecom Minister Dayanidhi Maran were being prosecuted in cases of alleged money laundering.
The high court, however, termed as "incongruent" the denial of security clearance to Red FM, when Sun TV group had been allowed by Madras High Court to take part in auctions.
Towards the fag end of the year, several telecom majors like Vodafone and Reliance and two associations representing them knocked at the doors of High Court against the Telecom Regulatory Authority of India's (TRAI) consumer friendly legislation mandating the cellular companies to pay for call drops from January 1, 2016.
Even the airline sector was dragged to the high court by a lawyer over Ministry of Civil Aviation's policy permitting airlines to overbook flights.
The policy allowed airlines to deny boarding to certain passengers if overbooking of seats has been made in comparison to the number of available seats in the flight.
The high court agreed to examine the issue and sought the stands of the Ministry of Civil Aviation, Director General of Civil Aviation and Air India.