Hi Anshul,
Nice to see you in SCN 
Using different minor release and different patch of client than the server might work and many cases I have seen to be working.. But the problem is that if you use a client tool of different patch it will make the reports and objects not supported by SAP even if the issue has noting to do with the product version..
We have faced similar issue some times back and we had to get them work on same patch for SAP support the issue.. also you might likely face very unusual issue sometimes which will be very difficult to troubleshoot..