How much time it takes to quash an fir in India?

An FIR can be challenged by a quash petition in the High Court (under its inherent jurisdiction'Section 482 CrPC now reflected in BNSS s.528) or by a writ under Article 226; quashing before investigation/charge'sheet is permitted in rare cases where the FIR on its face discloses no offence, is manifestly frivolous or mala fide (State of Haryana v. Bhajan Lal: https://indiankanoon.org/doc/1558396/), and quashing remains available even after a chargesheet if continuation would be an abuse of process (Joseph Salvaraj A. v. State of Gujarat: https://indiankanoon.org/doc/1488900/; Anand Kumar Mohatta v. State (NCT of Delhi): https://www.legalauthority.in/judgement/anand-kumar-mohatta-vs-state-govt-of-nct-of-delhi-department-of-home-40068); but where a chargesheet is filed courts generally refuse a "mini'trial" and ordinarily direct the accused to seek discharge before the trial court (Iqbal @ Bala v. State of U.P. (2023) (discussed): https://keralalaw.in/s-c-garg-v-state-of-uttar-pradesh/). Settlement/compromise can justify quashing in appropriate cases (Gian Singh v. State of Punjab: https://indiankanoon.org/doc/69949024/). There is no statutory time limit for a quash petition, yet delay and laches are material and may defeat relief (State of Rajasthan v. D.R. Laxmi: https://www.legalauthority.in/judgement/state-of-rajasthan-ors-vs-d-r-laxmi-ors-25542). Procedure: file a criminal miscellaneous petition/482 petition (or writ) in the High Court (now invoking BNSS s.528: https://www.indialawacts.in/bnssSections.php#s528), annex the FIR and any chargesheet/materials, serve respondents and seek interim relief; the High Court will exercise the power sparingly and only in the exceptional circumstances explained above (see the authorities cited).