Hello Atharva,

This year the pattern of JEE  is changed and they are conducting two papers of JEE mains. Talking about marking scheme, so yes there will negative marking for wrong attempts.In JEE Main 2019, paper 1 , 4 marks would be awarded for every question answered correctly, while negative marking will be done for every incorrect answer. This implies that 1 mark is deducted every-time a candidate answers the question wrongly.  Zero or no marks will be given to un-attempted questions.  

Good luck.