Option 1: 2000 -> Chhattisgarh was officially formed on November 1, 2000.
Option 2: 2001 -> This was after Chhattisgarh's formation.
Option 3: 2002 -> This was two years after the state was created.
Option 4: 2003 -> This was three years after the state was created.
Hence, Option 1: 2000 -> Chhattisgarh became the 26th state of India when it was carved out of Madhya Pradesh on November 1, 2000, along with Uttarakhand and Jharkhand which were also formed in the same year -> correct