Hello,

I hope you are doing fine, Yes you can. It is very normal and ethical for any civil officer to open an YouTube channel and be an social media influencer to motivate the young aspirant to work more hard and learn about the what truly civil services are. But if your monthly income exceeds 1Lakh  per year then you must mention it in your yearly earning Form 16.

I hope you find this information helpful. I wish you all the best for your future.

Good Luck