According to his schedule, Thackeray will campaign in the city till February 12, addressing as many as 19 rallies, while he is planning to hold one rally each in Pune, Pimpri- Chinchwad, Nashik and Thane from February 13 to 17.
Kickstarting the campaign last evening, he unleashed a stinging attack on BJP and even signalled that his party may not enter into a post-poll tie up with the party if the outcome in Mumbai falls short of its expectations.
Amid its frosty relations with BJP, the Sena's decision to go solo for the civic polls across Maharashtra has thrown up the question if the party's strategy will pay off or sharpen the divide between the saffron allies which share power in the state and at the Centre.
Though Sena has compelling reasons to maintain unfettered hold over its prime political space in Mumbai and other cities and restrain BJP from expanding its base, some observers feel the course it has opted may prove to be risky.
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"What happens if the post-poll situation is such that both parties may need to come together? In the elections, both may have to pay a price. BJP now has high expectations thinking it has got the mandate to rule and the 'Modi wave' that swept it to power in 2014 still remains. Shiv Sena, on the other hand, thinks that Mumbai is its own turf, which it can not concede to others," said an observer.
A BJP leader, on condition of anonymity, said Shiv Sena thinks his party's win in 2014 was a fluke by simply riding on the 'Modi wave'.
"Even if it is a fluke, we came to power and that is important. Similarly, the party has done very well in the recent municipal council and nagar panchayat polls as well. The Sena is trying to hurt our growing influence," he said.
Though the seat-sharing talks with Sena never made any
headway right from the start, BJP had maintained that its entire focus is on ensuring a "clean and transparent" administration in the affairs of BMC and not on a few seats.
BJP insiders say sections in the party felt that the ally could have been honourably accommodated but the Sena leadership, by publicly targeting Prime Minister Narendra Modi, has forfeited the goodwill of that section.
However, Sena sources said the party is keen to cash-in on the "anger" against BJP over demonetisation.
"Many Gujaratis, especially the business community, are joining the Sena in large numbers. Uddhavji felt that time was ripe to go alone," one of them said.
"If there is an ideological difference why Sena is still in the government? The grand-standing by both parties is because they are eyeing short-term political and individual gains. If there is indeed a real fight we will come to know after elections results," Congress leader Anant Gadgil said.
BJP spokesman Madhav Bhandari said the Sena leadership has failed to understand the changing political perceptions and aspirations of the new age voters.
According to him, the Sena top brass feels retaining power in Mumbai is essential for their political survival and has forced a decision on the grassroot cadres, despite they being open to an alliance.