is there separate document verification for neet and cet ..if i did not wrote kcet ..i wrote only neet ..then what is the procedure for document verification

The document verification is separately done for states like karnataka (KCET verification) but the admissions will be done on basis of NEET scores.
When you choose your seat through All India Quota then your documents will be verified at Medical college itself. When it comes through state quota, Document verification is undertaken by the Governament of the respective state.
At the time of counselling, the following documents will be required-

• High School & Intermediate Mark Sheets
• High School & Intermediate Passing Certificate
• Identity Proof
• Birth Certificate
• Category Certificate (If Applicable)
• Passport size photograph (Six)
• Neet Admit Card
• NEET 2020Rank Card
• Provisional Allotment Letter

Good Luck!!