The general rule is not to seek any technical proposal from the interested bidder during the bidding stage (also referred to as RFP stage) as it leads to difficulties in evaluating diverse proposals on a common set of parameters. The GoI recommends the public entity to set the technical parameters and to seek only the financial bid at the RFP stage. However, in the case of exceptionally complex PPP projects where the public entity wants to assure itself that the qualified applicants understand its requirements fully, it may seek technical proposals. Such technical proposals are invited along with the financial bids in two separate covers: the technical proposals are opened and evaluated at an intermediate stage before the opening and evaluation of financial bids. In cases where a technical proposal is sought under the RFP stage, the evaluation of technical proposal must be in the form of a pass or fail test, and only submissions that pass the minimum technical criteria should be invited to submit a bid in the RFP stage.