Hi arshadm
I think your Rm is giving you some cock and bull story.
Companies are listed in different exchanges and thier stocks are traded in such exchanges. It can not be traded in exchangex where the company is not listed. One company may be listed in one or more exchanges including regional exchanges and bse/nse. Stocks brought on one exchange can be sold in another exchange. In demat for it is fungible i.e. shares can not be distinguished by their folio number. The whole lot will carry the same number and IT department applies FIFO method i.e. first in first out as per the date to determine their holding period for capital gains purpose. As far as exchanges are concernec they are not concerned with which one of them if going in or out. Like money one 100 rupee note is as good as another 100 rupee note and while exhnaging you dont distinguish by numbers.
So what is brought on nse can be sold on bse and vice versa provided it is listed on both exchanges. Prices are different in both exchanges(Could be same as well) depending on demand / supply and market conditions and some lag in market reactions in both exchanges. This difference in price gives rise to arbitrage. You can have both exchanges connected by different computers or on the same computer and do buy/sell operation based on prices and earn minute margins.
Short is somthing different. If you have shares and want to sell it why do you want to short? Just sell it in bse. If you don't have and want to go short, do that as per rules of exchanges and your broker.
Normally if one company is banned in one share other also bans it. But may not happen. So you can sell where it is not banned.
Hope above will clear some doubts.
Pankaj
A couple questions, if you could help:
Aren't there still some basic regulatory restrictions that are impeding DMA trading in India? Is SEBI moving to remove these restrictions or will DMA continue to be hampered?
Also, for clearing purposes, aren't there still some problems with respect to the fungibility of trades on BSE and NSE?
Are the vast amount of securities in India cross listed between both BSE and NSE?
Thanks
QuidLik