Step 1: Identifying the location of the ports. - Mangaluru, Kandla, and Marmagao are all ports situated along the western coast of India, facing the Arabian Sea. - Haldia, however, is a port located on the eastern coast of India, along the Bay of Bengal, and is not part of the western coastline.
Step 2: Conclusion.
Hence, the correct answer is Haldia, as it is situated on the eastern coast.
\[
\boxed{\text{The correct answer is Haldia.}}
\]