Indications are that the reshuffle could take place around 1.30 PM on Sunday, two days before Prime Minister Narendra Modi leaves on a three-nation 10-day tour. By then, President Pranab Mukherjee would have also returned on Saturday from a trip to Bhutan.
There is a possibility some ministers with independent charge could be elevated in the first recasting of his ministry Modi will be undertaking since he assumed power in May.
Parrikar, who is tipped to get defence portfolio, went as far as to indicate the sure possibility of his induction when he said he will take up the responsibility at the Centre "if the nation requires" his services.
Among the names doing the rounds for induction are Jayant Sinha, son of former Union minister Yashwant Sinha, Anurag Thakur from Himachal Pradesh, Jat leader from Haryana Birender Singh, Bhumiar leader from Bihar Giriraj Singh or Bhola Singh, Col Sonaram Chaudhary and Gajendra Singh Shekhawat, both of Rajasthan, and Hansraj Ahir from Maharashtra.
The IIT-Mumbai graduate and a man with a clean image, Parrikar had a meeting with Modi and BJP President Amit Shah yesterday and he met party MLAs in Panaji today, possibly discussing his successor.
He said Shah had asked him to take up an assignment at the Centre, if offered, and made it clear that he was willing to shoulder the responsibility.
"Party President Amit Shah spoke to me in the morning and asked me to accept any assignment that would be given by the Prime Minister," he told reporters.

However, he did not disclose whether Prime Minister Narendra Modi had offered him the defence portfolio during their meeting yesterday.
"I want to give proper information as far as joining the cabinet is concerned. It is the prerogative of the Prime Minister. However, I would like to inform that the party has indicated to me that if such assignment comes, you should accept it," he said.
Parrikar said if any offer had to come, it would have to be before November 9, when union cabinet would be expanded.
"The party would not have asked me (to accept the offer) if they (top BJP leaders) had not interacted with the Prime Minister," he added.
Parrikar, who led BJP to victory in the 2012 Assembly polls, said he was not comfortable about having to shift to the Centre.
"I am not comfortable, I have too much affection towards the state. But rationality tells me if nation requires your services, I should take it. Whenever Goa wants my services, I will be there," he said.
"One reservation (about moving to Delhi) is because I have been elected for a five-year term with a popular mandate. My feeling is unless I complete the term it is not right on my part to leave mid-way. If I get an offer from the Prime Minister, then I will let you know what are my reasons for accepting the offer," he said.
Parrikar said he would be meeting BJP MLAs tomorrow to brief them about the development. He, however, refused to say anything about who would be his successor.
"There are many issues in deciding the successor... his capacity to deliver and to take everyone along. That is party's internal assessment," he said.

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