In Maharashtra, the expansion of Prithviraj Chavan-led Congress-NCP ministry has been postponed till Friday. The expansion of the 11-member Ministry was slated to take place at Raj Bhavan in Mumbai Thursday evening.According to Rajbhavan sources, the swearing-in-ceremony will now take place at 11 am tomorrow. NCP sources in Mumbai said that the postponement of today's swearing-in ceremony was due to the delay in the finalisation of Congress list.Maharashtra Chief Minister Prithviraj Chavan, who is in New Delhi since yesterday, is holding meetings with party President Sonia Gandhi to finalise the list of Congress ministers.Earlier Thursday, against the backdrop of Deputy Chief Minister Ajit Pawar's demand for additional portfolio for NCP in the Maharashtra ministry, top leaders of Congress and its ally met Union Agriculture Minister Sharad Pawar at his residence in South Mumbai.In the crucial meeting, the ruling combine agreed on their 1999 seat sharing formula. According to the 1999 formula the Congress will have 23 ministerial berths while its ally NCP will have 20.Chief Minister Prithviraj Chavan, Deputy Chief Minister Ajit Pawar, State Congress chief Manikrao Thakre, Mumbai unit president Kripashankar Singh, State NCP chief Madhukar Pichad and Union Civil Aviation Minister Praful Patel were among those present in the meeting.Indicating that the old formula of 23:20 would stay, Praful Patel had on Wednesday said that in the last one year, Congress and NCP had run the government smoothly.