Links
[1] https://shipmin.gov.in/sites/default/files/Format%20basic%20service%20price%20index%20trw.pdf
[2] https://shipmin.gov.in/transport-reseach/formats-and-lnstructions-compilation-basic-service-price-lndex-related-port-sector
[3] https://shipmin.gov.in/transport-research-category-monthlyquarterlyyearly/others