The fair trade regulator, which keeps tabs on unfair business practices across sectors, has approved the acquisition as the deal may not have "an adverse impact" on competition in the country.
BNP Paribas, in July, had announced to acquire Sharekhan as it seeks to expand retail broking operations.
According to sources, the deal size is estimated to be Rs 2,000 crore.
In a tweet today, the Competition Commission of India (CCI) has approved the "acquisition of Sharekhan Limited by BNP Paribas SA".
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BNP's financial offerings in the country include corporate and retail banking, investment banking and wealth management.
The deal to buy Sharekhan marks BNP's second big play in retail broking in the country after its 2007 investment in the Kochi-based Geojit Securities.
Following the BNP investment for 34 per cent, Geojit was renamed as BNP Geojit Paribas Financial Services and has now some 7,50,000 retail clients.