How many percent votes should a party get to be registered as a National Party-

As mentioned under Representation of People Act, 1951 any party can be recognizedas a National Party if it secures six percent of total valid votes polled in four or more States at a General Election to the Lok Sabha or to the Legislative Assembly and in addition, it wins four seats in the Lok Sabha from any State or States, National Parties are entitled to use a symbol for its candidates across the country.