Hello!Jithendra

Your gate score is enough to secure seats in some OLD IITs or in top ranked NITs.Here are lisit some IITs which you may get with above mention stream ;

IIT BOMBAY,IIT BHUBANESHWAR,IIT BHU,IIT MANDI,IIT ROORKEE,IIT PATNA

For old IIT you need at least 750 score under general category.To know which more colleges you may get visit below mention link:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/gate-college-predictor&ved=2ahUKEwi_mrSQwJrhAhULvY8KHb6pBf8QFjAAegQICRAD&usg=AOvVaw1xiFTORDwDEpBZmadY5ZwG.

GOOD LUCK!