Causeway Emerging Markets Fund, managed by Causeway Capital Management, has bought a 0.53% stake in Gujarat Pipavav Port via open market transactions for approximately Rs 45.77 crore. Meanwhile, Fairchem Organics shares are in focus as 360 ONE Special Opportunities Fund continues to sell, offloading a 0.6% stake, while the company approved a share buyback proposal worth up to Rs 34 crore.