Hello Koppala,

As you want a seat in SASTRA , first you need to qualify JEE Mains . As per your percentile and rank you may get a seat in SASTRA . Below I have listed the 2019 JEE Mains cutoff marks category wise -

• CRL : 89.75
• GEN-EWS : 78.21
• OBC-NCL : 74.32
• SC : 54.01
• ST : 44.33
• PwD : 0.11

I hope this would help you . Since SASTRA takes admission through JEE Mains , you may have a chance to get a seat . 

You can refer to this link for more details about cutoff in SASTRA : https://engineering.careers360.com/articles/sastra-btech-admission

Good Luck !!!