Reporting of Redemption proceeds of BHARATBOND0423

I had purchased units of BHARATBOND0423 (an ETF of Edelweiss MF) in Dec 2019 for Rs.300,000/-.  The same was redeemed in April 2023 for Rs.369,934.  Thus there is a long term capital gain of 69,934/-.  

However the statement I got from ICICI Direct (the platform on which this transaciton was done) shows nil profit and both sale and purchase amount as Rs.300,000/-.  Further this is avaialble under the seciton 'CG on Bonds'.  Also they show indexed cost as Nil or NA.  When I wrote to their help desk, they are unable to help and advised me to approach the RTA.  

I have the follwoing queries:

1. This being an ETF, Whether this is to be treated as sale or redemption of MF or sale of bonds?
2. Where to report the transaciton under the CG Schedule.
3. How to get the indexed cost to do the reporting?
4. Incidentally, the AIS does not contain this transaciton at all.