Mumbai, July 29 -- Private equity investors TA Associates and True North are looking to exit their stakes in Pittsburgh, US-based digital engineering firm Accion Labs Holdings Inc. The two investors have kicked off deliberations for a potential billion-dollar valuation for the company, according to four people familiar with the matter. The sale process is being led by JP Morgan and Avendus, these people said on condition of anonymity.

"The preliminary diligence process is expected to start in the coming weeks and about 20 NDAs (non-disclosure agreements) have been signed," one of the people cited above said.

A second person said that the deal is in its initial stages and the information memorandums-the official launch of a deal where de...