KOLKATA/BARASAT/KRISHNAGORE: BJP Prime Ministerial candidate Narendra Modi , on his last campaign tour in Bengal, slammed West Bengal chief minister Mamata Banerjee over illegal Bangladeshi infiltration, the Saradha controversy and her “failure” to deliver real ‘poriborton’ (change), finally daring her to arrest him.Sticking to his stand on pushing back Bangladeshi infiltrators, Modi asked the Bengal CM why she was so concerned about intruders but ignoring the citizenship demand of the Matua community. Daring Didi to arrest him, he said: “I am here. Make me your guest.”Addressing large crowds at Krishnagore, Barasat and Kankurgachi (Kolkata), Modi exposed Mamata's U-turn on infiltration, pointing out that she had said exactly the same thing and disrupted Parliament on the issue a decade ago.“Why is she reacting with anger when I am using her very words now? Is it because she is now in power and wants to keep this votebank secure? What has happened to you, Didi, in these nine years?” he asked.Whatever happened to poribartan, he asked. “The poribartan that was supposed to come about in Bengal has strangely come in you. It's unfortunate,” Modi said,Modi referred to statements made in Parliament by then Union Home minister Indrajeet Gupta of the CPI in May 1997 and Union minister of state for Home P M Sayeed in 1995 that had acknowledged large-scale infiltrators.“Even former CM Buddhadeb Bhattacharjee had warned that madarsas operating along the border were a threat to the country's security. Where were the questions of secularism when they were voicing their concerns?” he wondered aloud.“If you like Bangladeshis so much, why have you denied Matuas citizenship rights while allowing infiltrators to take away jobs that rightfully belong to sons of the soil? They come and take away Rs 100-a-day job by working for Rs 40. Bangladeshis don't have the right to snatch away your future,” he said to thunderous applause.Matua refugees who came to India during Partition in 1947 or when Bangladesh was formed in 1971 were granted citizenship but those who migrated subsequently have no rights. While Mamata has been quick to secure the former's support by making the son of the community's leader a minister and fielding another in the ongoing Lok Sabha election, she is silent on the citizenship issue.In his speeches that were laced with irony, Modi wondered why Mamata felt so agitated whenever he raised the Saradha topic. “Didi, you have not stolen from the poor. Then why do you fret about sending the thieves to jail and returning the poor their money? When she was voted to power three years ago, I thought there would finally be real change in Bengal. But she squandered the opportunity. I had heard the phrase 'power corrupts'. You have changed so much in three years in power, Didi!” he said in mock concern that sent the crowds ballistic.In Krishnagore Modi had said: “Every time I mention Saradha, Didi catches a fever.” And in Barasat's Kacheri Maidan, he said: “I am worried for Didi's health. She screams a lot these days.”It was clear Modi had done his homework, from the Matuas to Bengal's law and order. Pointing out that the very Maidan he was standing on had seen far too many rapes, he said it was unfortunate that crimes against woman are on the rise when a woman is chief minister.“You (Mamata) were a tigress who fought against injustice all your life. I was an ardent admirer of yours. But what has happened since you became CM? In crimes against women, Bengal figures among the top three states. Mothers, sisters and daughters are being raped. A sister was raped and killed here,” he said.Chiding Mamata for spending a large part of her campaign in “hurling abuses at him”, Modi said: “Instead of demanding a stop to price rise and unemployment, every party — including Mamata's — is talking of stopping Modi. What are they so afraid of?”Referring to the latest Congress allegation that he was indulging in “neech rajneeti”, he said it was Sonia and Rahul Gandhi who had degraded politics. “Inviting the Pakistan Prime Minister for biryani when Indian soldiers are being beheaded by Pakistani forces was abominable. They (Congress) did not even spare Adarsh Housing that was meant for widows of Kargil martyrs. And who can forget the Commonwealth Games scam?” he remarked.