Yes, you can get free seat in KL University, Vijayawada. If you score 1 - 100 and satisfy some more eligibility criteria then you are eligible for 100% concession.  Since you got 260 in KLEEE you are definitely eligible if it is based on only KLEEE marks. But there require your EAMCET score which should be in the range 1- 500, JEE Advanced score should lie between 1- 7000AIR, JEE Main percentile should be 95 or above, CBSE - 9.2 CGPA or above, TS IPE - 900 or above, AP IPE - 10 CGPA. Only if you meet all the requirements along with your good KLEEE score, then you are definitely eligible for 100% concession in fees.

For further information regarding KLEEE or KL University you can refer the below link.

https://www.kluniversity.in/