I paid clat 2020 form fees. but did not show my account.How I understand.???

I think you are trying to say that you paid fee but it is showing you have not yet paid and amount is deducted from your account. If it is so then wait for 48 hours. If the amount is deducted and does not come for them you can contact them and bank for that and you can repay again. If it is not shown as paid then repay. if it shows not paid then within 7 days money will be credited to your account.