Hello Aspirant,

See , at present we cannot say how much marks one needs for getting this stream said above in IIT Madras, as the exam has not been conducted ,also the cutoffs has not been released.

However, as per previous trends the Cutoff rank for Naval Architecture and Ocean Engineering were as follows(For SC).

In 2019- 1712

In 2018 - 1582

In 2017 - 1489

This means that your Marks in SC Merit List should be around 65-80 to Get into IIT Madras in Ocean Engg. and Naval Architecture (as per 2018)

You can check the cutoff of IIT Madras from the link given below

https://www.careers360.com/university/indian-institute-of-technology-madras

Feel free to ask any doubts

Good Luck !