HIIIIII PLS LIST OUT THE VARIOUS CUASES RESPONSIBLE FOR DAILY SENSEX's UP-DOWN HAPPNINGS?

What is the Authorised Share Capital for a company?

What are Gold ETF? How they traded in stock market?

I hold shares in both Nirma as well as Binani Cement(apart from shares in other Companies ).I don't require the funds parked in these Companies for a Long Time .
Recently I have received Notice from both these Companies that they are going to ask consent of the Members for the DELISTING of shares of these Companies from the Exchanges . Nirma may put an offer for Buy-Back of Shares from Public at Rs. 235/ per share . Not clear about Binani Cement .
What should this step be perceived as ? In case these Companies get the necessary approvals from the Shareholders & go ahead with the De-listing , what should I be doing as a ShareHolder ? Should I sell these shares in the Secondary Market (Or sell in the Buyback offer in case of Nirma) ?
Currently , Nirma is quoting at Rs. 231 (My purchase - Rs.156) & Binani at 91 (My Purchase - Rs. 59)

Can someone tell me what is the prevailing stamp duty on share certificates in Uttar Pradesh.

I would want to know about Bond market in India,,,these bonds are listed so chances of price fluctuations? Interest on above bonds /cumulative or we can get it annually??? Capital Gain possible in case of such listed bonds as a retail investor??? ( Issue closes on 25th oct )

what is scope of NCFM exam

Is it legal for a person to have two DMat Accounts on the same name . What if both these accounts are with different Depositories ? For e.g. , he has one account with Allahabad Bank which is a Depository Participant with CDSL & another account with Bank of Baroda which is a Depository Participant with NSDL .What is the penalty if this is illegal ?

Dear Sir/ Madam,

I have a trading account with ICICIDIRECT and the charges apart from the brokerage are STT, Transaction and SEBI Turnover charges, as well as stamp duty.

Would these charges be levied for both a purchase as well as a sale transaction? What are the applicable rates vis-a-vis charges applied by ICICIDirect
STT - 0.125% of turnover
SEBI Charges - .0001% of turnover
Trx charges - .0031% for NSE of turnover
- .0035% for BSE of turnover
Stamp Duty - .01% of turnover

How are capital gains taxed now?Can someone explain in layman's terms, and how does STT feature in this?

1) My frnd hd purchase 100 RPL Share @ 173 in feb 2008 in my account . (2) Nw RPL is merged wid RIL . (3) RIL Issued Bonus share if i hv 2 purchase dat 100 RPL SHARE , WHAT IS D PURCHASE PRICE 2 ME ?