It depends - if you go for a Down payment plan, builders generally give a discount ranging from 10-15% on the base price (that is a plus point here but then your EMI starts from day one and if there is a delay inconstruction, you tend to end up giving more interest). However if you opt for a CL plan, one gets to have that flexibilty in making payment to the builder as and when he demands. For example if there is a delay in construction from the builder, the demand for next installment would be extended from his side, So this factor gives that extra cusion. I would suggest you make full calculations on both the pricing for full term period of your loan and then decide.