The BJP's Goa Legislature wing today met under the leadership of Mr Parrikar, where it was decided to induct Mr Rane, son of Congress veteran and former chief minister Pratapsinh Rane.
The development is viewed as another jolt to the Congress, whereas for the BJP, Mr Rane's entry into the party fold is expected to strengthen the BJP's footprint.
"The BJP legislature wing has decided to welcome Vishwajit Rane into the party. It has also been decided that he would be inducted in the state cabinet," the Goa BJP legislature wing spokesman Michael Lobo told reporters after emerging from the meeting.
Mr Lobo said the exact date of Mr Rane's entry into the saffron camp and his induction as a minister, is yet to be decided.
"During the meeting, Parrikar took into confidence all the legislators and it was unanimously decided to have Rane in the party," he said.
The former Valpoi legislator had resigned from the Congress as well as an MLA on March 16, the day Mr Parrikar won a crucial trust vote on the floor of the House.
Mr Rane was upset with the AICC general secretary Digvijaya Singh for "failing" to form the government in Goa despite the party having a majority.
During the trust vote held in the 40-member House, Mr Parrikar proved his majority with 12 legislators from the BJP, three from the Goa Forward Party (GFP), three from the Maharashtrawadi Gomantak Party (MGP), three Independents and one from the NCP voting in favour of the trust motion.
The opposition benches included 16 MLAs from Congress, as Vishwajit Rane had remained absent during the voting.
The Congress, despite emerging as the single largest party in the elections, could not form the government while the BJP made deft moves by securing support from regional outfits and independents.
Days after losing the trust vote, the Goa Congress had said it would seek disqualification of Mr Rane from contesting elections for defying its whip to vote against the motion.
Mr Parrikar had last month allocated portfolios to nine ministers, including the allies, while keeping the crucial departments such as Home, Finance and Education with himself.