Which of the following statement is incorrect in the context of OBCs in India?

 The First Backward Classes Commission headed by Kaka Kalelkar submitted its report in 1955.

The correct answer is Option 2: The First Backward Classes Commission headed by Kaka Kalelkar submitted its report in 1955. 

This statement is incorrect because the First Backward Classes Commission, headed by Kaka Kalelkar, submitted its report in 1953, not in 1955.

NCERT: ..."the OBCs are a much more diverse group than the Dalits or adivasis. The first government of independent India under Jawaharlal Nehru appointed a commission to look into measures for the welfare of the OBCs. The First Backward Classes Commission headed by Kaka Kalelkar submitted its report in 1953. But the political climate at the time led to the report being sidelined. From the mid fifties, the OBC issue became a regional affair pursued at the state rather than the central level. The southern states had a long history of backward caste political agitation that had started in the early twentieth century. Because of these powerful social movements, policies to address the problems of the OBCs were in place long before they were discussed in most northern states. The OBC issue returned to the central level in the late 1970s after the Emergency when the Janata Party came to power. The Second Backward Classes Commission headed by B.P. Mandal was appointed at this time. However, it was only in 1990, when the central government decided to implement the ten-year old Mandal Commission report, that the OBC issue became a major one in national politics."