Recovery and payment of tds in part bill payment system

XYZ Ltd has entered into contract with ABC Ltd for supply and installation of certain goods. Payment terms is 25% bill payment half yearly. Hence full payment of invoice will be made in 2 years time. Invoice of full amount has been raised by ABC Ltd with above payment terms. 1) What will be accounting entry in Tally ERP 9 software? 2) TDS to be recovered and paid on behalf of ABC Ltd in full at once or partially as per payment terms? 3) GST of Invoice to be paid full at once or partially as per payment terms? Please advise.

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