These cases are very common in various Courts of India. I can understand your concern in this regard. This practice is being adopted as a matter for recovering the outstanding in case of eventuality. From the lender side they are more concerned about the recovery of the money with the contracted interest amount.
Hon'ble Supreme Court has held that if in a transaction, a loan is advanced and the borrower agrees to repay the amount in a specified timeframe and issues a cheque as security to secure such repayment; if the loan amount is not repaid in any other form before the due date or if there is no other understanding or agreement between the parties to defer the payment of amount, the cheque which is issued as security would mature for presentation and the drawee of the cheque would be entitled to present the same. On such presentation, if the same is dishonoured, the consequences contemplated under Section 138 and the other provisions of N.I. Act would flow. When a cheque is issued even though as ‘security’ the consequence flowing therefrom is also known to the drawer of the cheque and in the circumstance stated above if the cheque is presented and dishonoured, the holder of the cheque/drawee would have the option of initiating the civil proceedings for recovery or the criminal proceedings for punishment in the fact situation, but in any event, it is not for the drawer of the cheque to dictate terms with regard to the nature of litigation.
However, there are always defences available as per facts and circumstances of each case. Since you have already received the summons, therefore, the case has to appropriately defended. Detailed discussion is required with complete documents.
You may contact my secretary to connect with for clarification.