Hello Mudavanth Shankar Lal

For appearing the NEET exam you have to follow the strict rules given by the authority. To answer your question pencil are not allowed inside in the exam center. the below are some important instruction I mentioned.for more instructions go through the link I provided below.

• Stationery items, printed or any kind of paper other than admit card and ID proof will not be permitted inside the exam hall.

• Items like geometry/pencil box, calculator, pen, scale, writing pad, pen drives, eraser, etc will not be allowed inside the test center.

• Communication devices like mobile phone, Bluetooth, earphones, pager, health band, etc are strictly prohibited.

  Recommended

• Candidates cannot carry items like a wristwatch, wallet, handbags, belt, cap, ornaments.

• Any other item like microchip, Bluetooth, camera, which could be used for unfair means are barred from the exam hall.

For more instruction on NEET exam go through the below article link

https://medicine.careers360.com/articles/neet-exam-day-guideline

I hope the above information will help. Good luck :)

Thank you!!