@balamurugan Are you manually configuring your chain to include this cross-sign? As Nummer described, starting a year ago the chains supplied do not use the cross-sign.
Last year some people asked about it and one LE staff member described an option to manually update a provided chain. LE also wanted more info about why someone would need this. See: Use both X1 and X2 chains for ECDSA certificates - #2 by mcpherrinm
I also doubt that a new cross-sign will be issued.
But, you should describe why you manually create your own chain and the need for the cross-sign.