Patna, Feb 27 (ANI): JD (U) leader Shivanand Tiwari on Thursday confirmed that Bihar Chief Minister Nitish Kumar was behind the split in the RJD. The development came in view of 13 RJD MLAs purportedly splitting from the party. Nine had later come back in the RJD fold. RJD chief Lalu Prasad had earlier said that Nitish Kumar had conspired to split his party to save his government, which is in a minority. However, refuting the charge Nitish said that the crisis in the RJD was their own doing.