MY PRECENTILE IS 81.022 IN JEE MAINS and category rank 66862. which am I college prefer me .

Hello,
With your percentile in JEE Mains,. Your rank would be more than 1.65 lakh in the common rank list. Even your category rank is too high.
With this rank in JEE Mains, you won't be able to get a seat in any government engineering colleges like NITs IIITs and GFTIs. Even your category rank won't be of any help.
I would suggest you to go for some top private engineering colleges in India which conduct their own entrance exams which are very easy as compared to JEE Mains.
Some of them are

• Sharda University Greater Noida
• Amity University Noida
• SRM University Chennai
• LPU Jalandhar
• Chandigarh University
• Manipal institute of technology

Please visit this link for more such top private engineering colleges in India

Also please visit this link to use the JEE Mains college predictor
hope it helps