"Satyamev Jayate (truth alone triumphs)," tweeted Parrikar who was Defence Minister when the Indian and French governments signed an agreement to purchase the planes from Dassault.
Goa's State Advocate General also cited the 2017 Supreme Court verdict, which declared Right to Privacy as a fundamental right, saying that Parrikar's medical status is his intimate, private right
This will be the first time Parrikar will not be celebrating his birthday in public after becoming an MLA over two decades ago.
In the PIL, activist Trajano D'Mello had claimed "administrative collapse" in Goa due to extended absence of Parrikar, 62, from office.
He will hold his protest alongside RTI activist Rajan Ghate who has been on a fast at Azad Maidan here for the past 11 days demanding that Parrikar step down due to health reasons.
Parrikar, 62, has been recuperating at his residence here since he was discharged from the All India Institute of Medical Sciences in Delhi on October 14. He is suffering from a pancreatic ailment.
The MGP warned that it would contest the Lok Sabha polls and Assembly by-elections in the state against the BJP candidates if the demand was not met.
The Congress had submitted representations to the President and the Goa Governor, claiming that the party had the requisite number of MLAs to prove majority in the 40-member House.
Parrikar, 62, is recuperating at his private residence near here since he was discharged from the All India Institute of Medical Sciences (AIIMS) in New Delhi.
Social activist and lawyer Aires Rodrigues has filed a complaint before Goa Lokayukta P K Misra alleging the state government had signed a "suspicious land deal" worth Rs 70 crore with former Congress MLA Subhash Shirodkar
The Bharatiya Janata Party (BJP), however, rubbished his charge, saying Parrikar was not being forced to continue as the chief minister and that his health condition was improving.
CM Parrikar was flown in a special flight and later taken to his private residence at Dona Paula near Panaji, in an ambulance
Parrikar was admitted to Delhi's premier All India Institute of Medical Sciences on September 15
Parrikar, 62, is admitted at the All India Institute of Medical Sciences (AIIMS) in Delhi since September 15 for a pancreatic ailment.
He was speaking to reporters on the sidelines of a function, where a memorandum of understanding (MoU) was signed with the Portuguese government on water supply and sanitation.
Congress on September 26 had claimed that there is 'discontent' among the members of the ruling BJP-led coalition and a 'political earthquake' was expected soon.
There is "anarchy" prevailing in the coastal state in Parrikar's absence, the Sena claimed, adding the party was grappling with the problem of who could replace Parrikar as it does not have anyone "suitable" for the top post.
The development came a day after BJP president Amit Shah said that Parrikar would remain in his post, putting to rest speculation about continuance of the ailing chief minister.
The development comes at a time when Chief Minister Parrikar is undergoing treatment for a pancreatic ailment at the All India Institute of Medical Sciences (AIIMS) in New Delhi.
The opposition Congress, which is the single-largest party in the state, has staked claim to form the government.
The government is functioning "very well" and all the alliance partners are firmly supporting Parrikar, who is undergoing treatment at Delhi's AIIMS, the BJP leader asserted.
Appointing a new Chief Minister would force the BJP-led government to face a floor test and prove its majority in the Assembly
The move comes at a time when 62-year-old Parrikar is admitted in the AIIMS in Delhi for a pancreatic ailment. Goa is being ruled by the BJP-led Alliance headed by Parrikar.
The root of the current political situation can be traced back to the 2017 Goa assembly elections, when the BJP formed the government despite winning lesser seats than the Congress
Parrikar is currently recuperating in AIIMS in New Delhi and three observers from the BJP are in the coastal state to take stock of the political situation.