@RKSV, Sent a mail with a copy of CMR for change in DP ID details. But received following mail....
" Dear XXXX,
Thank you for writing to us.
We are sorry to inform you that we would not be able to change the demat account number as we have stopped linking third party demat account with Upstox trading account.
In order to open demat account with Upstox, please follow the below mentioned steps:"
Why are you refusing your clients to trade with you ?? I am not going to link my new Dmat account, instead this is mare change of it.
Please resolve the issue.