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As you mentioned your rank   ap pgecet  as 634..yes ..you can get good colleges with your rank , category ...and counselling.

Some colleges are as fallow:-

• Jawaharalal Nehru technology university college of engineering
• Andhar university
• Sahi Ramakrishna raju engineering college
• Narasaraopeta Engineering college
• KKR and KSR institute of technology and science
• NRI institute of technology
• Sasi institute of technology and engineering
• Aditya college of engineering
• Annamacharya institute of technology and science
• SRK institute of technology
• GMT institute of technology

Hope it will help!!