HI,

Placement depens on the marks you possess and also the skills you have ,and how best you appear in written test and interview

Yes companies may ask you about the gap you have and you must give them the reason for the gap you had,but thats not the issue that you wont be selected ,finally what maters for a company is the talent you posses and how you wil help the company to grow

so dont worry about the gap ,be ready to face to interview with postive attitude

GOOD LUCK