Hello,dear

Well, the eligibility criteria for this exam is candidate should must have secure above 50% in phyics ,maths and chemistry/biotechnology/biology., So ,since you haven't score above 50% in chemistry ,so you are not eligible .visit the below link the read this article about this exam

https://www.google.com/amp/s/engineering.careers360.com/articles/met/amp

Best wishes !!