One way linking helps a lot in increasing the PageRank over nights. If you have your one way link on the sites those have high PR, then definitely you are doing your pagerank a lot of good.
www.rankready.com is a linking website that have numbers of registered websites with high pagerank. Register there, have one way linking with those sites and see your pagerank going to sky.

If you want to make your page or website's rank increase then you should do the link building with social bookmarking,blog comments and forum posting i think it ll be definitely useful for you because if your page has a good quality then this process will make a big traffic and increase your page rank...so go ahead good luck..

thanks
 

HI, thanks to you all for giving me nice replies and your important time for me.

I will be grateful of you all.

Thanks a lot! :)