Be it the witness box in trial courts or corridors of the Delhi High Court and the apex court, names of business tycoons like Mukesh Ambani, Kumar Mangalam Birla, Naveen Jindal and Ravi Ruia cropped up in controversial matters and cases which are under scrutiny in different judicial forums.
The year also saw several multinational giants like Finish mobile maker Nokia rushing to the high court in a high stake tax dispute while UK-based Vedanta Group, Korean steel major Posco and Swiss pharma firm Novartis were engaged in Supreme Court on issues ranging from industrial pollution, licences and patent.
The patent battle saw domestic pharmaceutical firms getting a major boost with the apex court dismissing the plea of Novartis for patent of a cancer drug Glivec, paving the way for Indian companies to manufacture cheap generic drugs.
So was the case in the high court where US-pharma major Merck Sharp & Dohme (MSD) failed to get any relief against Indian Pharma Glenmark which has come up with generic anti- diabetic medicines. An intra-court appeal against the order is pending before a larger bench.
However, the year was tough for Sahara India Parivar as Roy was not only restrained from leaving India but he and his group firms were accused of taking the apex court "for ride" and "playing hide and seek" in the case relating to refund of Rs 20,000 crore to investors in which they are facing contempt proceedings.
More trouble came when the apex court said that contempt proceedings can go ahead against Roy and his two employees for interfering with the investigation into the 2G spectrum case.
The 2G spectrum scam also forced Bharti Cellular CMD Sunil Mittal, Essar Group promoter Ravi Ruia and Reliance ADAG chief Anil Ambani to rush to the apex court in the wake of special CBI court issuing them summonses to appear as accused and witnesses respectively.
While Mittal and Ruia got a temporary relief from the apex court which stayed the proceedings against them in additional spectrum scam in which they have been summoned as an accused, Ambani failed to convince the court to give an order against the trial court directing him to appear as a witness in the 2G case involving former Telecom Minister A Raja and others, including three top executives of his group.
A day after ADAG chief's testimony, his wife Tina Ambani also made her appearance in the Patiala house court and recorded her statement which was described as "better than her husband" in answering questions by special judge O P Saini.
Government's controversial decision to hike the price of natural gas reached the Supreme Court which agreed to examine the issue raised by CPI MP Gurudas Dasgupta who filed a PIL accusing Petroleum Minister M Veerappa Moily of allegedly favouring Mukesh Ambani's Reliance Industries Ltd (RIL), which have been refuted by them.
If 2012 was the year of 2G scam, then 2013 would be recorded in the history of the apex court for coalgate case and CBI's clamour to attain autonomy and free itself from its political masters to investigate top bureaucrats.
The high voltage hearing in the coal scam saw the apex court taking strong exception to the interference into its probe by the then Law Minister Ashwani Kumar, who was forced to resign.
CBI, which was termed as "caged parrot" by the apex court during the hearing in the coal scam, came out all guns blazing and named corporate bigwigs Naveen Jindal and Kumar Mangalam Birla in separate FIRs registered in connection with the case.
The controversy surrounding former corporate lobbyist Niira Radia's tapped conversations was dealt by the apex court and after long hearing, it directed CBI to probe some key issues in which names of some big corporates, politicians, bureaucrats and journalists cropped up.
The court directed CBI to investigate issues regarding favours allegedly shown to top corporates like Mukesh Ambani's RIL, Anil Ambani's ADAG, Tatas, working of touts, kickbacks in aviation sector, manipulation of Unitech's stocks and illegal gratification paid to tax officers which arose from Radia's tapped conversations.
It also directed CBI to probe into allotment of coal blocks to Sasan Power Project run by ADAG and allotment of iron ore mines at Ankua, in Singhbhum district of Jharkhand to Tata Steel.
Out of 23 issues which were framed by a court-appointed probe team on the analysis of tapped conversations of Radia with bureaucrats, politicians, corporate tycoons and scribes, the apex court ordered CBI probe in 14 issues.
During the year, the Supreme Court also made it clear that it would quash the Jet-Etihad Airways deal if there are any irregularities in it.
It also issued notices to Centre on a plea for putting on record a memo sent by PMO to the Corporate Affairs Ministry in which the PMO had allegedly raised serious reservations in respect of the growth of the middle eastern carriers including Etihad.
Sterlite Industries, a subsidiary of UK-based Vedanta Group, was directed by the apex court to pay Rs 100 crore as compensation for polluting environment through its copper smelting plant in Tamil Nadu.
It also refused to stay the May 31 National Green Tribunal order allowing Sterlite Industries Ltd to start operating its copper smelting plant in Tamil Nadu's Tuticorin district.
During the year, the apex court set aside the Orissa High Court order which had quashed the state government's petition to allot iron ore licence to steel major Posco in Khandadhar hills in Sundergarh district for a multi-crore steel plant.
The Delhi High Court too was seized with some important business matters, including the controversy surrounding the AirAsia deal and a plea filed by Nokia for lifting of stay on sale of the assets.
Paving the way for Nokia's sale to Microsoft under its USD 7.2 billion global deal with the US giant, the Delhi High Court ordered defreezing of its assets with conditions including that Nokia Finland shall be jointly liable to pay tax demand raised under the IT Act.