Loan denied after sactioning

Dear Sir, I had applied for construction loan in a major bank for a site for which I had lost original sale deed. I had submitted attested copy, police complain, NOC from earlier bank where I had taken site loan. I got an email from bank saying my loan is sactioned. The processing fee was deducted from my bank account. Based on that I started construction. After a week when I enquired about disbursement, I was asked to get legal verification. I did that. Later I was informed I cant be given loan because I dont have orignal sale deed copy. meanwhile trusting the bank, I started construction and now in a difficult position as I am bearing huge expenses on construction without the loan. Can the bank do this? sanction the loan and later fool the customer with lame excuses? I need to understand how can I hold bank responsible for the trouble I am going through because of their careless attitude and the mental stress caused to me. Thanks, appreciate your response, Basavaraj S