Like me many traders/investors , many times posted about this kind of activity on Q&A, but , i think did not got much attentions by others , here is the link about Tipster SMS : Discuss and trade with caution
Don't Buy BRFL Share, they are manipulating
SEBI , Media , Telecom operators are all quite silent about this kind of problems. especially ignored by SEBI , (until unless somebody post about this problem on Face book/Twitter ) .
It seems that Media . SEBI are colluding with Pump & Dump operators.