Here I am providing the List of IITs with branches where you can get for your ST rank :

1.ISM Dhanbad : Minning

2.ISM Dhanbad : MInning Machinery

3.IIT BHU : Btech + Mtech in Mettalurgy

4.IIT BHU :Btech + Mtech in Engineering Physics

5.IIT KGP :Btech +Mtech in Minning Safety Engineering

Now considering your Home State as Rajasthan;here I am providing you some options for NITs :

1.NIT Agartala :Chemical

2.NIT Srinagar :Civil

3.MNIT Allahabad : Production Engineering 

BEST OF LUCK !!! 

Hey!Ashish

Sorry to say!Your advance score isn't enough to fetch you IITs You need ST rank under 790 for IITs.But you can get HOME STATE NIT with jee mains score.You mains rank seems enough for HOME STATE NIT.

Ask if you have any query.

GOOD LUCK!