Dear Mr. Himanshu,
If you know the Challan No., then okay; otherwise, log on to esic.in. Click "modify challan," then in the drop-down menu, select the challan created month and year. There you will find the challan number; note it down. Then, on the esic.in login page, on the right side down, you will find "online challan double verification" link; click it. In a new window, it will ask for the challan number. Type the challan number you wrote earlier and click submit. It will show the transaction details. If you find the transaction status as "Transaction Completed Successfully," then print it. It is the proof that you have remitted the ESI and will act as a paid challan as well.
Thank you.