Hi dear,

Your gate score is 430.Since you belong from sc category you have a chance for IIT BOMBAY,IIT ROORKEE and some lower IITs.You can check here cutoff of all iits in previous year

https://www.google.co.in/url?sa=i&source=web&cd=&ved=2ahUKEwilwsTehKnhAhWM6nMBHYy-DjsQFjAKegQIBRAB&url=https%3A%2F%2Fengineering.careers360.com%2Farticles%2Fgate-cutoff%2Famp&psig=AOvVaw1za-CstDfA4qFHZdnEnaZN&ust=1554006840416203

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Hope it helps