I'm sorry! It is not possible to change the maturity instruction of your Recurring Deposit.
You can, of course, continue with this good saving habit by investing in a new Recurring Deposit with a fresh value date.
Please click https://www.kotak.com/en/personal-banking/Deposits/Recurring-Deposits.html?cid=answer&source=keya&medium=faq to explore Recurring Deposit.