BJP state General Secretary A N Radhakrishnan began the fast. Party workers from each of the 14 districts in the state will also be participating in the protest.
"We will raise this issue in Parliament," she said.
Describing the protest as a new beginning for the party in the state, Pandey said the state government will have to rethink on what they were doing on the Sabarimala issue.
"The road for discussion should always be open," she said.
The right-wing outfits have been up in arms against the Kerala government's decision to implement the September 28 Supreme Court verdict allowing women of all ages to offer prayers at the Lord Ayyappa temple at Sabarimala.
The opposition Congress-led UDF had said that they were with the believers on the matter.
A four-member BJP delegation comprising Members of Parliament Pandey, Nalin Kumar Kateel, Pralhad Joshi and Vinod Sonkar have been camping in the state for past two days and spoke to Ayyappa devotees on the problems faced by them.
Pandey alleged the Sabarimala issue had "worsened" due to its "mishandling" by the state government.
"It is jungle justice that is happening here," he alleged.
"We just want to say that it is not CPI(M)'s constitution, but India's Constitution that is supreme," Pillai said.
None of us have said so and truth is God, he said.
"We will study the situation and give a report to BJP national president Amit Shah," he said.
Joshi said even under the British rule, the believers were not targeted and only freedom fighters were arrested.
"This Communist government is harassing the believers and putting them in jail. Communist means those who lack love towards the country," he said.
The BJP MP also warned the police officials who took stern action against protesters in Sabarimala and said an IPS officer "misbehaved" with a Union minister, referring to the spat between IPS officer Yatish Chandra and Union Minister of State in the Ministry of Finance Pon Radhakrishanan when he visited the hill shrine.
"We will ask Pon Radhakrishnan to move a privilege motion against the officer. We warn that police officer, he will be summoned," Joshi said.
He also said if the Communist government continued to do the same, "it will be thrown into the Bay of Bengal".
Earlier, party MPs visited Surendran who is lodged at Poojappura central jail.
Surendran was arrested last month for his alleged involvement in violent protests at Sabarimala.
The BJP MPs, however, alleged he had been falsely implicated in various cases as he raised his voice against the chief minister.
"This is 100 per cent political conspiracy to snub the BJP which is growing in Kerala. The BJP will fight for its workers. We will submit a report to Amit Shah," they said.
The MPs had also met Governor P Sathasivam at Kochi on Sunday and sought his urgent intervention to ensure that peace and tranquillity returns to Sabarimala, where they alleged the situation was akin to an "undeclared emergency" imposed by the state government.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)