Riya Sen seems to have a thing for mobile phones – actually mobile numbers to be accurate! The Bengali bombshell has changed her mobile number once again...and this isn't the first time! A few years ago, when Ashmit Patel allegedly circulated an MMS, she changed her number to put a stop to the never ending calls asking her if that was really her in the scandalous clip and then now she seems to be yet in another controversy – this time about being involved with a much married actor! So when phone calls started pouring in, out went the old number and in came the new. Every time the pretty young thing gets involved in a controversy she changes her number. Piece of advice darling - reduce your controversies or else you are soon going to run out off numbers!