Political observers are attaching special significance to Shah paying a visit to Bal Thackeray's memorial as it came days after the Sena warned of taking an "independent stand" on backing a candidate in the presidential election.
Shah's earlier visit to Mumbai as BJP president did not include a trip to Shivaji Park.
"Shah is also visiting 'Matoshree', the Thackerays' residence, on Sunday to meet Sena president Uddhav Thackeray.
The Shiv Sena had backed Congress's presidential nominees--Pratibha Patil and Pranab Mukherjee-- against official NDA candidates in the last two elections.
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Shah landed here this morning as part of his extensive tour programme of various states to expand BJP's footprint.
After coming out of the airport, Shah accepted the greetings of BJP workers who had gathered outside. The BJP president then visited Shivaji Park to offer floral tributes to Maratha king Chhatrapati Shivaji, B R Ambedkar, Veer Savarkar and Bal Thackeray.
Shah also met Chief Minister Devendra Fadnavis and BJP ministers in the Maharashtra government, besides party MPs, MLAs and state unit office bearers.
Tomorrow, Shah would meet the core committee members of the state BJP unit.
On Sunday, he will attend a meeting in connection with Deendayal Upadhyaya's birth centenary year celebrations. Upadhyaya was one of the tallest leaders of Bhartiya Jana Sangh, the forerunner of BJP. He will also review the progress of various programmes aimed at strengthening the party at the booth level.