Lockdown is to be implemented only in Chennai City limits (full Chennai district, parts of Chengalpattu, Kanchipuram and Tiruvallur districts). SR has already announced the closure of PRS centers in Chennai City limits. PRS counters located in Chennai Division other than Chennai City will be functioning. Going by SR's decision on PRS centers, the probability of this train getting cancelled is minimal as this doesn't touch the lockdown zone. Chengalpattu town doesn't come under the lockdown zone. Anyhow, let us wait for official PR from SR. Until then let us not speculate.