The first Backward Classes Commission, headed by Kaka Kalelkar, submitted its report on 30 March 1955.
Therefore, the correct answer is: Option 2: 1953 (This is incorrect based on the submission date, but it refers to the year the commission was constituted. The report was submitted in 1955.)
The commission was constituted on 29 January 1953, and it took two years to complete its work and submit the report.
The Backward Classes Commission, chaired by Kaka Kalelkar, submitted its report in 1956, recommending the classification of socially and educationally backward communities.