If you already have loan approval available then you can get a better bargain
There is no need to transact money without registration, because if the transaction happened without registration, it can be fraudulent.
On loan approval, you can immediately go for registration, so that there is no risk on your transaction.
Without loan approval, the seller does not like to register, why many times it is mandatory to cancel the registration if the loan is not approved, which requires a purchase and if the buyer refused to come, such a security risk Increases.
If the loan is not approved later, the booking amount can be forfeited
If you do not have loan approval, you may take longer than the scheduled time, you may also have to pay interest in view of the written sections in your Agreement/MOU.
The loss of registration fee is certain because this amount is not refunded to you
Keeping all the above things in mind, you can delegate risk free.