dear aspirant,

 firstly congrats to your result you have best chances to get top IIT s and psu also . gate 2019 results are not out till so we couldn't predict the rank with marks hope you may get good results 

for more information check below link :

https://www.quora.com/What-was-my-rank-in-GATE-2018-for-chemical-engineering-if-I-scored-52-marks

thank you.