I am new in this forum. I have done some posts but i don't know how can i withdraw my money from this platform. Can any one suggest me which wallet will be better for me? 
Probably better suited for Beginners & Help. Anyway, learn to google.
https://bitcoin.org/en/choose-your-wallet
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I am new in this forum. I have done some posts but i don't know how can i withdraw my money from this platform.
If you're referring to bitcoin (i assume), then you can't withdraw "money", (as in your local currency) from "the blockchain" directly, but you will need to use an exchange. I'd recommend that you use a legitimate one such as Bitstamp, Kraken, Coinbase, (or, if P2P; LocalBitcoins.)