What is the ideal time frame for investing in Scripbox Tax Saver?

Scripbox Tax Saver invests in ELSS funds which have a lock-in period of 3 years, during this withdrawal is not allowed.

Although one can withdraw after the 3rd year, ELSS funds should be treated as a long-term investment as it is basically an equity mutual fund. Scripbox recommended holding period is 7 years in this fund so that you could get much better returns.