Every now and than we come across cases in which broker does unauthorised sell of shares ... I have created a thread on this discussion in below mentioned forum. This relates to this forum as well, so am posting here as well.
http://www.traderji.com/equities/35845-keeping-demat-broking-accounts-separate.html#post388242
http://www.traderji.com/equities/35845-keeping-demat-broking-accounts-separate.html#post388242