Under the Normal Payment Scheme (NPS), home loan will be disbursed to the developer according to the payment schedule set by the developer as construction reaches certain pre-set milestones. E.g., commencement of foundation work, Roof / Ceiling, Carpark, TOP, etc.
Another option is the Deferred Payment Scheme (DPS). Under DPS scheme, you can push back the timing of the payments till Temporary Occupation Permit (TOP) and collection of keys, usually 3 years later. Try DPS Calculator.