@bipinbn

I think Estel covered everything.

I use my linux desktop and GParted to make:-
1x FAT Partition (blk1p1) 2x Linux Swap Partitions (blk1p2 and 1p3)

You can then change the swap spaces in config file.

As regard my comment, the reason that FAT should be the first partition is because the device shows the card as corrupt if (blk1p1) isn't FAT.
However with the testing update that are coming through this will no longer be required.

As for the back cover issue you can do as Estel (magnet method)l or swap off the card back to EMMC, this was the purpose of one of the scripts on the page mentioned before. Ereswap ATM doesn't provide a solution to this.

Edit:-

Also check out Swappolube it will help with laggy swap issues.