https://en.wikipedia.org/wiki/Indian_maritime_history
https://en.wikipedia.org/wiki/Chola_invasion_of_Srivijaya
https://www.distinctdestinations.in/blog/india/exploring-india-s-maritime-silk-trade-route
https://www.moneycontrol.com/company-facts/southindiashippingcorporation/history/SIS
https://en.wikipedia.org/wiki/Shipping_Corporation_of_India
https://www.marineinsight.com/maritime-history/the-history-of-shipbuilding-in-india/