Will BJP be able to win Bengal by 'Sangathan Shakti' & 'Kali Bhakti'?

After the assembly elections in Bihar, assembly elections are to be held in West Bengal next year for which the BJP has begun its preparations. Home minister Amit Shah is on a tour of Bengal to take stock of the party's preperations for the West Bengal assembly elections. 

He has also claimed to form the BJP government with an absolute majority in the assembly elections to be held in 2021.