Can my employer refuse to accept my resignation?

No. Once you serve the agreed notice period (or pay notice pay in lieu), your resignation is legally effective the moment it is communicated. The employer's 'acceptance' is a formality, not a precondition.

Two constitutional and statutory bars apply:

(1) Article 23 of the Constitution prohibits 'forced labour'. The Supreme Court in People's Union for Democratic Rights v. Union of India, AIR 1982 SC 1473 held this includes labour compelled by economic or contractual pressure;
(2) Section 14 of the Specific Relief Act, 1963 expressly bars specific performance of personal service contracts — meaning a court will never order you to continue working.

There is no statutory maximum, but courts apply a reasonableness test. The Supreme Court and various High Courts have held that:

(1) 1-3 months is widely accepted as reasonable, especially for senior or knowledge-worker roles;
(2) 6 months or more may be struck down as 'in restraint of trade' under Section 27 of the Indian Contract Act, 1872;
(3) Notice pay in lieu — you can pay one month's salary for one month of notice and walk away. The employer cannot refuse this either.

If the notice period in your contract is unreasonable, a court can read it down. But pragmatically, most disputes are settled rather than litigated — focus on a clean exit, not a fight over notice.

This is a common pressure tactic, and entirely unlawful. The Supreme Court and labour tribunals have repeatedly held that an employer must issue:

(1) Relieving letter — confirming the date of separation;
(2) Experience certificate — confirming designation and tenure;
(3) Full and Final Settlement (FNF) — salary, leave encashment, bonus dues;
(4) Form 16 and tax certificates;
(5) PF transfer / withdrawal support;
(6) Gratuity if eligible (5+ years of service).

If any of these are withheld, send a written legal demand notice through a lawyer. Most employers comply once a formal notice is served. If not, approach the Labour Commissioner, file an EPFiGMS grievance for PF, or sue for damages in a civil court.

Generally no — post-employment non-compete clauses are unenforceable in India under Section 27 of the Indian Contract Act, 1872, which voids any agreement in restraint of trade. The Supreme Court in Niranjan Shankar Golikari v. Century Spinning, AIR 1967 SC 1098 and subsequent cases has been clear.

What IS enforceable:
(1) Non-compete clauses DURING employment (i.e., you can't moonlight for a competitor while employed);
(2) Confidentiality and trade secrets — protection survives termination;
(3) Non-solicitation of customers or employees for a reasonable period (1-2 years), if proportionate;
(4) Garden leave — being paid not to work for the notice period.

If you receive a legal notice from a former employer alleging breach, engage a reputable, specialised employment lawyer immediately — most such claims fold under scrutiny.

Multiple parallel routes:

(1) Send a legal demand notice via registered post, formally communicating last working day and demanding all dues;
(2) Labour Commissioner — file a complaint under the Code on Wages, 2019 for unpaid salary;
(3) EPFiGMS portal — for PF disputes file at epfigms.gov.in;
(4) Gratuity Controlling Authority — for unpaid gratuity under the Payment of Gratuity Act, 1972;
(5) Civil suit for damages — for loss of opportunity (e.g., losing a new job because relieving letter was withheld);
(6) Writ petition in the High Court if the employer is a government / PSU.

For sustained or complex disputes, engage a reputable, specialised employment/labour lawyer. See our companion guide on unpaid salary remedies.