Lenskart subsidiary Neso Brands has invested $4 million in Paris-based eyewear brand Le Petit Lunetier. As part of the investment, Neso has acquired a stake in the brand, which was founded by former Google executive Jérémie Encaoua and optician Elie Attias. Neso CEO Bjorn Bergstrom and Lenskart CEO Peyush Bansal will join the board of Le Petit Lunetier.