We are thinking on the lines of shifting the IPL matches from Chennai. There are four alternative venues that BCCI has kept ready. They are Visakhapatnam, Trivandrum, Pune and Rajkot. CSK can play their matches at these venues,

Vinod Rai, 6 months
BCCI picks 4 stand-by cities for CSK's home matches due to Cauvery turmoil