Hello , 

As your query is you have scored more than 60% in the third fourth and fifth sem of diploma without any backlog but in the 6th sem you had 2 backlogs and you are worried about whether you are eligible for engineering or not. Well at the time when you take admission in Engineering College there after you still even can clear the backlogs of diploma, so there is no way to feel that you are not eligible for engineering but since you have two backlogs so there might be a possibility that you may not get a good college therefore in my opinion it will be a better option to clear the backlogs and then apply for the engineering college, if you seriously want a good Engineering College with good placements or something like that.

Further, if you feel any other query regarding the same are you want me to know about you can let me know in the comments section below I will definitely help you with that.

I hope your query is solved.

Thank you.