New Delhi, Jan 25 European auto major PSA Group today announced a partnership with the CK Birla group to re-enter the Indian market and earmarked an initial investment of 100 million euros to set up vehicle and powertrain manufacturing in Tamil Nadu. “As part of the first agreement, the PSA Group will hold a majority stake in the joint-venture company being set-up with HMFCL for the assembly and distribution of PSA passenger cars in India,” the two firms said in a joint statement.