An employee holding a managerial position joined the company in January 2025 and had a probation period of three months. After completing this, he received a confirmation letter in June 2025. He accepted both the appointment and confirmation letters, which stated a notice period of three months. In the last week of June, he submitted a resignation email, stating that he would serve a notice period of one month. The HR department responded to this sudden resignation, asking him to either serve the full three-month notice period or pay the salary in lieu, as mentioned in both the appointment and confirmation letters. He then sent another email requesting an early release, to which the company's HR consultant responded twice, reminding him of the company policy. However, he did not respond to these emails. On June 30th, he sent another email declaring that it was his last day and that he had left all company property at his desk. The company then consulted a lawyer and sent him a notice. My question is, can he avoid paying the three months' salary by following this approach, or is he obligated to pay?