Union Home Minister Amit Shah at a public rally in Cooch Behar, West Bengal on Thursday. BJP's Poriborton Yatra not about changing CM but to build Sonar Bangla, says Amit Shah ANI | Updated: Feb 11, 2021 14:33 IST Cooch Behar (West Bengal) [India], February 11 (ANI): Ahead of Assembly polls in West Bengal, Union Home MinsterAmit Shah on Thursday flagged off the fourth Poriborton Yatra from Cooch Behar and said that this initiative is not about changing Chief Minister Mamata Banerjee but to build 'Sonar Bangla'. Addressing a public rally here in Cooch Behar, the Union Home Minister said, "We have started the 4th Poriborton Yatra today from Cooch Behar. TMC says that Bengal is running alright, why do we need Poriborton Yatra? This is not to change a minister or a minor change, this Yatra is to change the situation in Bengal."