If you've received a summon from the Delhi High Court regarding a suit for specific performance and permanent injunction, it's crucial to understand the implications of not responding. Failing to appear or file a written statement within 30 days can lead to an ex-parte decision against you, potentially resulting in the plaintiff's claims being granted without your input. While you can request a new date, it's highly advisable to engage a legal professional to defend your interests effectively and avoid jeopardising your position.