Mamata Banerjee's government denied permission to Yogi Adityanath and Shivraj Singh Chouhan's helicopters to land in Bengal. This after repeatedly refusing to allow top BJP leaders to hold rallies and conduct yatras in the state. The Kolkata Police, clearly at Mamata's command, also entered into a stand-off with the Central Bureau of Investigation (CBI) that had come to the city to interrogate police commissoner Rajeev Kumar in relation to the Saradha chit fund scam. 

Where have we seen ruling governments denying the Opposition permission for conducting rallies? Which state police has ever arrested CBI officials who have come for investigation? Why is Mamata afraid of the BJP and its leadership which according to her is a fringe player in the state?

It is difficult to fathom! As part of its project to improve its position in east and south India, the BJP is putting in all efforts and using star campaigners like Narendra Modi, Amit Shah, Yogi and Shivraj in Bengal to exploit people's frustration with Mamata. Possible gains in Bengal will help the BJP negate some of the expected losses in Hindi heartland states, feel strategists.  

Why Mamata is in trouble

1. Trinamool Congress has peaked in Bengal

We have heard a lot about the BJP having peaked in many states like Gujarat, Madhya Pradesh, Maharashtra, Uttar Pradesh and Rajasthan. But so have many regional parties. The Trinamool Congress (TMC) bagged 34 out of 42 seats in Bengal in the 2014 Lok Sabha elections. 

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It is very difficult for the TMC to repeat the performance as the BJP is gaining ground. The Congress has adopted a policy of going it alone in the state and the Left is determined to make a comeback. Mamata knows that if her tally declines, her prime ministerial ambitions will receive a big jolt.

2. TMC is the new Left

People fed up with 34-year rule of the Left Front voted for 'poriborton' in Bengal. But it is increasingly becoming clear that Mamata has now occupied the position once held by the CPM-led Left Front. She has adopted a similar strategy of using violence, intimidation and rigging to win elections. Clubs have taken over the neighborhoods. The state government nurtures 20,000-odd clubs with crores of rupees every year and these clubs in turn ensure that the area under them remains loyal to Didi.     

Also read: Mamata furious because BJP has hit her source of fund for Lok Sabha polls?

3. BJP increasingly taking over from Left as the main opposition to TMC

The BJP, like the CPM, won two seats in 2014. In by-polls held since May 2014, the BJP has done well compared to the CPM and Congress. In 10 by-polls that were held in the state since the 2014 Lok Sabha elections, the BJP won one seat and finished second on five seats. The CPM couldn't win a single seat in this period. Mamata realises the threat from the BJP and that's why has upped the ante against the party. 

4. BJP highlighting corruption scandals and minority appeasement politics of Mamata

Muslims account for about 30% of the population of Bengal. The BJP has been accusing Mamata of minority appeasement. In 2017, Mamata made an appeal to the Hindu community to halt Durga puja visarjan for sometime as it had overlapped with Muharram. She had also banned arms at Ram Navmi rallies which has evoked a sharp response from the Hindus. The recent face-off between the Centre and state over the Saradha chit fund scam investigations has given a chance to the BJP to highlight the fact that Mamata is shielding the corrupt. 

5. Complementary vote blocks

The upper castes and OBCs support the TMC in the state. At the national level, these voters are with the BJP. More than 60% of the upper castes and 30% of the OBCs voted for the BJP in the 2014 general election. Even in Bengal, the BJP enjoys decent support among these two groups — 24% and 21% respectively. Mamata's fear is that the Hindus, frustrated with her minority appeasement politics, could consolidate behind the BJP and that could cause her significant damage. 

6. Congress's 'ekla chalo re' niti

The TMC, at the end of the day, is a splinter group of the Congress and they too share complementary vote blocks, mostly from the minority sections. The minority votes were split in the 2014 general elections between Mamata, Left and Congress. Both TMC and Congress were in discussion for a seat-sharing arrangement. However, talks have failed. If they would have contested together in 2014, the Left Front candidates would have lost from the 2 seats they won. The BJP, however, would have still managed to retain their seats. The Congress has a strong presence in central Bengal which has seven seats on offer. The party won all four seats from this region in 2014. It also enjoys decent support among the non-literate and the agricultural workers in the state. An alliance with the Congress would have provided Mamata some cushion.         

7. Strong vote segments of BJP

The BJP enjoys good support among urban voters (25%) and the middle class (21%). Twenty-nine percent of the educated voters (college and above) chose the BJP in 2014. It has been able to create a space among these categories of voters and also the youth. 

Opinion polls predict significant improvement in BJP's performance 

The C-Voter opinion poll predicts seven seats for the BJP while VDP Associates predicts 15 seats. Both the polls project a significant increase in the vote share for the BJP in the region, from 17% to 32% (C-Voter) and to 37% (VDP Associates). 

However, challenges remain

The absence of a strong cadre has been one of the BJP's weaknesses in Bengal. This is coupled with a lack of leadership to take on the charisma of Mamata, and hence the BJP's progress has been stalled in the state. Bengal is also known for class politics. The image of the Left and now TMC has been that of championing the rights of the poor and downtrodden. The BJP is currently seen as a party of the middle and rich class. But all said and done, general elections 2019 will see a cracker of a contest in Bengal and Mamata would not have it easy. 

Amitabh Tiwari is a political commentator, consultant and strategist advising political leaders and parties. He is a former corporate and investment banker who tweets @politicalbaaba