What are the documents which bank issue after granting loan

I took a home loan from pnb bank last year for an under construction property. I completed the registration formalities and submitted the original copy of the title deed and a copy along with it this month. The bank didn't provide me with any receipt for the same, when I refused to submit the original title deed without the receipt they threatened to file a case against me. They said I will get a receipt by post once the documents are submitted to the head office. I being a lay man had to believe and submitted the original title deed but now I fear what will happen if the bank lose the title deed then I won't be able to claim. Bank have also not gave me the loan agreement copy and said that PSU banks unlike private banks only share the sanction letter. Is the bank right in both the above case?