Hi Praveen,
If you are using AM335x then better to follow the procedure which you posted previous reply for SPL and u-boot and please use UBIFS for filesystem.
We have two types for flashing UBIFS filesystem into NAND flash.
1) At u-boot shell.
Copy the ubi.img file into MMC/SD card
u-boot# mw.b 0x82000000 0xFF u-boot# mmc rescan u-boot# fatload mmc 0 0x82000000 ubi.img
u-boot# nand erase 0x780000 0xF880000 u-boot# nand write 0x82000000 0x780000 0xFC0000
0x780000 --> This address should be the starting address of mtd7 partition.#setenv bootargs 'console=ttyO0,115200n8 noinitrd ip=off mem=256M rootwait=1 rw ubi.mtd=7,2048 rootfstype=ubifs root=ubi0:rootfs init=/init'
2) At Linux shell with the help of NFS or initramfs (ramdisk) booting.
Use the below TI wiki link.
U-boot
http://processors.wiki.ti.com/index.php/AM335x_U-Boot_User%27s_Guide#UBIFS_file_system_flashing
Linux
http://processors.wiki.ti.com/index.php/UBIFS_Support#Creating_UBIFS_file_system