January 1

Somdev announces retirement from professional tennis.
One of India’s most promising singles players in recent time, Somdev Devvarman, has called time on his career, announcing the move via Twitter.
Devvarman, currently 909th in the ATP rankings, has been missing from the circuit for a few months now. Recently, he was rumoured to have shown interest in becoming the coach of India’s Davis Cup side in place of Zeeshan Ali.

January 2

Supreme Court Removes Anurag Thakur as BCCI President.
The Supreme Court of India has stripped Anurag Thakur of his powers as BCCI President for not complying with the orders of the apex court with regard to implementation of the Lodha committee reforms.
He was elected as the BCCI president in May 2016 after Shashank Manohar was elevated to International Cricket Council's chairman post.
In 2011, he became BCCI joint secretary after spending little over a decade as president of the Himachal Pradesh Cricket Association (HPCA).

January 3

Table tennis Olympic champion Li Xiaoxia announces retirement.
China's table tennis Olympic champion Li Xiaoxia has announced her retirement.
She is the eighth table tennis Grand Slam winner in history with singles crowns from the 2008 World Cup in Kuala Lumpur, 2012 Olympics in London and 2013 world championships in Paris.
She also has several doubles and teams world titles to her name.

Brijesh and other two KSCA office-bearers resign.
A day after the Supreme Court removed Anurag Thakur and Ajay Shirke as President and Secretary of the BCCI for "obstructing" Lodha Panel reforms, Karnataka State Cricket Association office-bearers Brijesh Patel and two others tendered their resignations.
"Brijesh Patel, Ashok Anand and Dayanand Pai, have resigned from the posts of KSCA Secretary, President and Treasurer'', KSCA CEO M.P. Ganesh.
The office-bearers tendered resignations in the light of the apex court setting out conditions based on Lodha Committee recommendations for their removal.
Interestingly, Patel's name was doing the rounds as one of the contenders to assume one of the top two posts in the BCCI, Cricket Association of Bengal president Sourav Ganguly.
Ambassador to EU quits and warns staff over 'muddled thinking'.
Britain’s ambassador to the European Union Sir Ivan Rogers dealt a blow to the UK’s Brexit negotiations by quitting and urging his fellow British civil servants in Brussels to assert their independence by challenging ''ill-founded arguments and muddled thinking''.
An email explaining his reasons for his abrupt departure to the UK’s Brussels diplomatic staff at UKRep, that he was leaving now to give time for his successor to take charge of the lengthy negotiations process.
Sir Mark Ivan Rogers KCMG (born 1960) is a senior British civil servant, who was the Permanent Representative of the United Kingdom to the European Union from.

January 4

Jagdish Singh Khehar sworn in as Chief Justice of India.
Justice Jagdish Singh Khehar, the seniormost judge of the Supreme Court, was sworn in as the 44th Chief Justice of India by President Pranab Mukherjee.
Justice Khehar will have a tenure for over seven months till August 28, 2017.
He replaced Justice T.S. Thakur whose tenure ended.

Stalin elected as working president of DMK.
DMK treasurer M.K. Stalin was unanimously elected the working president of the party by the general council at party headquarters Anna Arivalayam.
Mr. Stalin's elevation in the party practically makes him its chief ministerial candidate.
A resolution moved by party general secretary K. Anbazhagan to make amendments in the by-laws to create the new post made it clear that the working president will have all the powers of the president. It was seconded by party's principal secretary Duraimurugan.
The general council witnessed emotional scenes when Mr. Duraimurugan, recalling the speech of DMK founder C.N. Annadurai at the party’s 1956 conference urging V.R. Nedunchezhian to preside.

Dilip Vengsarkar steps down as MCA Vice President.
Former India captain Dilip Vengsarkar has submitted his resignation as vice-president of the Mumbai Cricket Association (MCA).
The move comes on the line of the Supreme Court order. On December 17, Sharad Pawar resigned as president of the MCA.
Vengsarkar was also the chief national selector from 2006-08. In 2010, he was a part of the BCCI's CIC. Currently, he's the chairman of the National Cricket Academy (NCA).