any trick for solving para jumble????

First thing you need to do is to identify the idea of the topic given by keenly observing all the given sentences.
After identifying the idea find out in which of the sentences the idea has been introduced. Start analyzing which sentence comes later ( Links to the idea, the meaning of the sentence itself displays it's position if observed keenly). Most of the sentences end with words like 'Thus, As a result, However, Hence etc.