FMCG major Britannia Industries on Tuesday said it has entered into a joint venture with Chipita SA. The estimated investment in the joint venture company -- Britchip Foods Ltd -- in Phase I is Rs 100 crore. "The company has signed a joint venture agreement with Chipita SA, a Greek company, for the purpose of developing, producing and selling ready-to-eat croissants and any other product as may be agreed between the parties through a joint venture company, Britchip Foods Ltd," the FMCG major said in a BSE filing.