Hey manish,

JEE main marks and ranks will be declared on april 30 2019.

until that you can check your rank on JEE main rank predictor on careers360 website by filling in your details.

however, any rank predictor is not totally reliable but it just gives you a rough idea of your JEE main ranking for your refrence.

you can check your ranking at the fallowing website https://engineering.careers360.com/jee-main-rank-predictor

hope this helps.

all the best...!!!