KOLKATA: In a first such move, West Bengal chief minister Mamata Banerjee instructed state government officials to stop sharing data with the central government . In an administrative meeting in South 24 Paragana district on Thursday, Banerjee said that the state departments would have its own portals and store data on its own.She said that the NDA government accesses all data of the state government and uses those to send ‘political messages’ to some sections. Following Banerjee’s instruction, Bengal government has already started working on a dashboard that would act like a common platform for state departments to store government data, said a senior official.“From now onwards, we should have our own portals. And we will stop sharing data with Centre. In the name of data collection, through portals, they are trying to control many things. There are few concurrent subjects and they use that. They are directly interfering in the federal structure and it is not proper. This never happened in the country,”Adding that her government is also an elected government like the government at Centre, Banerjee alleged that the Centre used data regarding the minority population in Bengal though its portal, but did not disperse the scholarship and other funds for them. The state government had to disperse funds later for this.“I am strictly asking all my state departments to maintain their own portal and no department should go to the central portals for data or share data with them. They are taking data this way, but not giving any fund. They are using the data for their vested political interest,” she added.Banerjee is one of the Opposition leaders who immediately criticised the recent home ministry notification empowering 10 central agencies to access all computers, if there is a requirement of surveillance.