In Kerala, The change of power is always between LDF and UDF. BJP never managed to do well in the god's own country. The year 2019 could be a turning point for the Kerala BJP.
Political Analysts have been predicting 1 MP Seat for BJP in Kerala. This is why because Saffron Party fielded Actor Suresh Gopi as it's candidate in Thrissur Lok Sabha Constituency. Even if its One Seat, It's going to be considered as a massive victory for the Saffron Party.
BJP politicised the Supreme Court verdict permitting entry for Women in all age groups into Sabarimala Temple. While Ruling LDF implemented the decision of the SC, Congress opted for a neutral stand. Whereas, BJP stood supportive of those having the religious belief that women in menstrual age shouldn't enter Sabarimala Temple. This is why Hindu Voters in Thrissur Segments are supportive of BJP Candidate.
Even if BJP wins one seat in Kerala, It gives the hope for the Saffron Party that it can form the government in this Southern State some time in future. That's gonna be dangerous for both LDF and UDF.