Which political party laid emphasis on the idea of one country, one culture and one nation?

Bharatiya Jana Sangh laid emphasis on the idea of one country, one culture and one nation. The objective of the Bharatiya Jana Sangh is the rebuilding of Bharat on the basis of Bharatiya sanskriti and maryada and as a political, social and economic democracy, guaranteeing equality of opportunity and liberty of person to all its citizens so as to build up a prosperous, powerful and united nation.