@Iranna Don't take me otherwise, but that's what some people advise to have as many accounts to have better chances of allotment. I too wonder, how people manage 20 or 30 a/cs as they claim in CG forum.
To the question, there can not be a standard strategy that works in all the IPOs between choice of sHNI and retail. Take for example, Vodafone Idea where retail got full and confirmed allotment whereas some of sHNI could not get anything in lottery. If someone can manage funds, general preference could be
bHNI, sHNI and retail in that order.
Sorry, I should have avoided usage of words like desperate in previous message. Hope, you understand 🙏