Yadav's brother Vijay Prakash was arrested by Jamui's superintendent of police Arvind Kumar on Tuesday.
Antony will take over as Defence minister from Pranab Mukherjee who has been appointed the next External Affairs minister.
Additional Director General of Police Manoj Nath was assigned to probe the release of a Rashtriya Janata Dal candidate and brother of Union Minister of State Jaiprakash Narayan Yadav during the Bihar elections.
K C Tyagi, senior Janata Dal-United leader and close confidante of party president Sharad Yadav, on Saturday filed nomination for the lone Rajya Sabha seat vacant from Bihar following resignation of rebel leader Upendra Kushwaha.
The government may scale down security of Kashmiri separatist leaders, who snubbed members of all-party delegation on Sunday.
Among the major political parties, chief minister Nitish Kumar's Janata Dal-United is contesting in 35 of the 71 seats, followed by its ally Bharatiya Janata Party (29), while the opposition Rashtriya Janata Dal has fielded its candidates in 42 and its coalition partner Congress is in the fray in 20 assembly segments.
The CM was present at the Patna airport to receive body of the LJP founder with whom he spent long time in the politics. The CM and other leaders cutting across party lines paid respect to the septuagenarian leader, who died in Delhi on Thursday, at the airport premises.
Congress leaders were in for a rude shock on Monday when the media sidelined their much-touted Jawaharlal Nehru birth anniversary event, and instead turned its full attention to Prime Minister Narendra Modi, who was addressing thousands of supporters in Sydney's Allphones Arena
With opinion polls on televisions showing him a bad loser in the coming Lok Sabha elections in Bihar, Chief Minister Nitish Kumar on Friday discarded such surveys as a "PR campaign to boost TRP" by "rumour master" and said poll results would send them into "deep shock".
Mystery shrouds the death of Madhya Pradesh Governor Ram Naresh Yadav's son Shailesh Yadav.
Seeking to reassert Jawaharlal Nehru's legacy, Congress President Sonia Gandhi said secularism is a compelling necessity for a country as diverse as India.
The govt asserted the Centre has no role in the preparation of the draft list.
This is the first meeting chaired by Gandhi after relinquishing the post of Congress president last year.
Home Minister Rajnath Singh on Monday said the "unfortunate" and "unprecedented" developments in West Bengal
Opposition members kept on shouting 'Pradhan Mantri sadan me aao'.
Meeting the families of six persons killed in serial bomb blasts during his Sunday rally, BJP Prime Ministerial candidate Narendra Modi on Saturday assured them all help from the party.
Bihar Chief Minister Nitish Kumar on Tuesday hit back at Narendra Modi, comparing him to Hitler and said his desperate dream to unfurl national flag at Red Fort would remain unfulfilled.
Successors of those who migrated to Pakistan and China during Partition will have no claim over the properties left behind in India, with Parliament on Tuesday passing a bill to amend a 49-year-old law.
Chief Minister Sarbananda Sonowal said the "historic day will remain etched in their memories forever".
In terms of electoral fortunes, in all likelihood, the status quo is not going to change in any significant manner. These six seats from Bihar are unlikely to give any clear signal to UPA, NDA or Federal Front.
Opposition on Monday picked holes in various government decisions like demonetisation and surgical strikes as well as allocation of funds for MNREGA, agriculture sector and Scheduled Castes, saying it has failed on all fronts despite which it is trying to "fool" the people.