Are your growth expectations realistic? Obviously, you'd know these things better than me but Z was very active on Traderji since 2010 until at least 2016-17, after which they seemed to be losing interest, so obviously, they thought it was worth the effort for all of those years, & it's only within the last couple of years that their user-base has exploded, whereby they felt that they didn't need to be on Traderji any more. Moreover, when they entered the business, the field of discount-brokerage was pretty thin whereas Fyers has entered a very crowded field rife with a lot of discount-brokers, with some even offering completely free trading, so your growth is likely going to be much harder than Z. Just my two cents.