A PCI DSS compliance consultant in India earns their fee in the first fortnight, and not by writing policy. They earn it by working out exactly which systems store, process or transmit cardholder data, and how many of them do not need to. Every system you remove from scope is a system you never have to harden, monitor, patch on a clock or evidence for a year.
Worth saying plainly: we are not a Qualified Security Assessor. A Report on Compliance is signed by a QSA, and for most merchants a Self-Assessment Questionnaire is signed by you. Our work is everything on either side of that signature: establishing scope, reducing it, closing the gaps, and building the evidence so the assessment is a review rather than a discovery exercise.
Version 4.0.1 is the standard in force; v3.2.1 was retired in March 2024, and the requirements that were future-dated became mandatory on 31 March 2025. If your last assessment was against v3.2.1, the delta is real, particularly around scripts on payment pages, authenticated scanning and the new targeted risk analyses. Where the same estate also needs penetration testing, PCI DSS mandates it, so the two should be planned together rather than bought twice.