wanna know if ill get direct admission

yooo so basically ill get like an 80 percent in my state board aggregate, so
1. will they be taking mpc only or the whole percentage ?
2. AND will I get cse direct admission if I get 80 percent in inter and 94 percent in 10th ?
3. AND if I apply for cse and I come of as not eligible, will they give me a lower branch or straight up reject me.
4. AND is there sliding in 2nd year so that I can hopefully get into cse if I choose or end up in ece ?