The Kelkar Commission, the first OBC commission, advo cates a castewise enumeration of the population in the 1961 census

The Mandal Commission reiterates the suggestion; (in pix) B.P. Mandal presenting his report to then president Zail Singh

The National Commission for Backward Classes recommends collection of caste/ communitywide population data in 2001 census

BJP leader Sumitra Mahajanheaded Parliamentary Standing Committee on Social Justice and Empowerment recommends an OBC census

Planning Commission passes a resolution (also signed by then Gujarat CM Narendra Modi, who was member of the National Development Council of India) recommending inclusion of the count of OBCs in 2011 census

Sameer Bhujbal, MP from Nashik, raises a private question on OBC census in the Lok Sabha. The resultant resolution, supported by 100 MPs including BJP deputy leader in the house Gopinath Munde, Congress minister Veerappa Moily, JD(U) leader Sharad Yadav, RJD supremo Lalu Prasad, SP chief Mulayam Singh Yadav and RLD president Ajit Singh, results in the 2011 SocioEconomic Caste Census

Saying there were anomalies in the caste data, the Modi government sets up an expert panel under then NITI Aayog vicechairman Arvind Panagariya for classification and categorisation of caste names. Nothing has come of this exercise so far

The Centre publishes the SECC data, excluding caste component

BJP MP Ganesh Singh-headed Parliamentary Standing Committee on Welfare of Other Backward Classes reiterates proposal for caste census

In April, the NCBC advises the Centre to file an affidavit supporting the counting of OBCs in a case before the SC. The apex court has been hearing a writ petition seeking caste enumeration