You will have no physical delivery obligation as it will be netted-off. This support page explains this in detail -
Spread and covered contracts
Spread contracts that result in both – take and give delivery obligation will be netted off for the client. For example, you have a bull call spread of Reliance of the same expiry, a lot of long call options of strike 1300 and a lot of short call options of strike 1320 and the spot expires at 1330, this will result in a net-off and there won’t be any delivery obligation. Here a few cases highlighted below which will result in a net-off of physical delivery obligation for contracts of the same expiry.
Margins will be charged separately on all legs of spread contracts(credit and debit spreads, iron condors, etc) and for covered call positions given the risk on the broker(Zerodha) that you can exit one of the legs of the spread before expiry leading to a physical delivery obligation. You will still continue to receive SPAN margin benefit for the contracts(if any).
There will be a 0.1% brokerage charge -
For all netted-off positions(spread contracts, iron condor, etc), the brokerage will be charged at 0.1% of the physically settled value.