Reliance Industries — How to track the rsl share transfer to ril

Address:

700091

I have purchased 300 shares of Raymond Synthetics Ltd in 1991. I have the share certificates in physical form. Later RSL was taken over by Recron and IPCL and IPCL was taken over by Reliance Industries. How to track the RSL share transfer to RIL? Please advise me
my register folio : 282385.
My email id is prabhat.[protected]@omconsultancyindia.com