Hey Abhishek,
Yes you can repeat 10th standard if you are not satisfied with your result. But importance of 10th standard is not worth of wasting a year. Marks of 10th standard are used to take admission only in 11th standard and in some jobs there is criteria that you need to score 60% minimum in 10th standard so decide after thinking.
Hope this helps.
All the best and Thank you!
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