"It is important to set the record straight since insinuations and leaks are being made explicitly to create an illusion that Mistry was a 'hands off' chairman and TCS/JLR were on 'auto-pilot' during his leadership," Mistry's office said in a five-page letter today.
Listing out details of the efforts undertaken by him as the non-executive chairman at both the companies, which contribute a whopping 90 per cent of the group profit, the letter said the salt-to-software conglomerate is "busy apportioning credit" for the stellar performances.
Without giving the timelines, the letter claimed the then chief FC Kohli's illness had prevented JRD Tata from going ahead with Ratan Tata's proposal.
"Ratan Tata was then heading Tata Industries' joint venture with IBM and had approached JRD Tata with a proposal from IBM to buyout TCS. JRD refused to discuss the deal because Kohli was still recovering in the hospital," it said.
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"JRD turned down the offer, demonstrating true vision. But it was also a near-death experience for TCS at the hands of Ratan Tata," the letter claimed.
The Tatas and IBM had started the joint venture with equal holding in 1992, and dissolved it in 1999, while TCS was founded in 1968 and was taken public in 2004. JRD stepped down from chairmanship of the group in 1991, while Kohli stepped down from TCS in 2000.
"The overpayment for Corus made it harder to invest in
it, which had been neglected, and thereby, placed many jobs at risk," the letter from Mistry's office said.
In the telecom business, Tata made a "strategic" decision to enter CDMA space as against the popular GSM, despite advices to the contrary, Mistry said calling it "a case of one person's judgment adversely affecting jobs of thousands".
In a nine-page letter on November 10, Tata Sons had accused Mistry of not really contributing to the success of JLR and TCS, saying these assets were inherited by him from Ratan Tata who had nurtured them and that the ousted chairman could not take credit for their stellar performance.
In today's statement, the Mistry camp gave credit for these two companies' success to their leadership under Kohli and N Chandrasekaran at TCS, and Ralph Speth and Ravi Kanth at JLR.
"As chairman of Tata Sons and TCS, Mistry's access to senior stakeholders across the world was an enabling platform," the letter said, while claiming that he met at least 60 global chief executives to help TCS.
To buttress the point, Mistry's letter enlisted training of 1.35 lakh people in digital area, the Japanese joint venture, industry leading growth in Europe and a surge in high revenue clientele during his tenure.
During Mistry's four-year tenor between December 2012 and October 2016, TCS' cash and equivalents doubled to Rs 20,500 crore with a surge in cash conversion, which helped it declare a special dividend last year, it said.
JLR, the letter said, is at a "critical juncture" where decisions taken today will decide its future resilience.
"JLR strategy under Mistry's chairmanship has been to achieve scale as well as minimise currency and supply chain risks by investing in new facilities," it said, while underlining that it is now a stronger company that will reward the shareholders more consistently in future.
Excluding the board and budget meetings, Mistry spent over 120 days, including 38 days on JLR design review, 56 days on offsite strategy meetings as well as market visits to dealers in China, the US, and India, the letter said.