Why is Halal certificate necessary? Answer of Halal Council Chairman

Till now the dispute regarding halal and haram was only regarding meat. ..but now the matter has come to tea-biscuits, salty bhujia, rice-sugar. In UP, Yogi government has banned 4 institutions giving Halal certificate. FIR has also been registered against the companies which take Halal certificate from them. There are many logics behind the action. First of all, there is FSSAI to give such certificates in the country, so no one else has any right to give Halal certificate.