Hi @Basil_Abraham,
Welcome to the MongoDB community forum!
Unfortunately you will not be able to directly configure the wiredTigerConcurrentReadTransactions and wiredTigerConcurrentWriteTransactions parameters as setParameter is one of the unsupported commands in Atlas.
However, if you have a dedicated Atlas cluster (M10+) it may be possible to tune some parameters for your use case:
Please contact Atlas support if your use case requires access to a command not currently supported by the existing Atlas database user privileges.
If you do choose to contact support, I would recommend providing further information regarding the issues you are attempting to address with the configuration of those parameters as they may provide alternate suggestions based on your use case or cluster metrics.
Hope this helps,
Jason