does not matter if you are working or not...
You just need to provide proof of maintenance funds for your dependants..along with few other standard documents ...

You can apply any time before expiry of your Visa.. Only concern is qualifying period for ILR... You need to make sure you are not failing short of 4 years 11 months period required for ILR, otherwise u will need another extension to cover up the gap period... that will be again a costly affair..

Answer of all your question is ... Yes...

That's correct...

Applying from India will not be a problem. However, please remember if you apply dependants visa without extending yours, the expiry of the new visa will be 6th Dec 2013. Also, there is some additional cost involved if the dependants apply separately from main applicant. Ideally, you should apply fo...

They will anyway charge once... Though you may still need to fill the payment details for administrative purpose...

It will be £600 since the main applicant (you) lived in UK for more than 12 months....

I renewed my visa this January... With gross dividend & gross salary based previous earning...
The same has been discussed on many threads in this forum...

They need to know when you apply for their visa...
logically, it does not make sense, but this is the way UK immigration works..

28 days before 16/09...
UKBA already had that information in the system... But you can get a communication from Sheffield PEO...

In some cases, UKBA do request additional documents, particularly for limited company / sole trader type incomes. It will be wise to check with your representative / solicitor if they received any communication from UKBA to provide more documents. For appeals, a strict deadline of 10 days exist, so ...

It's gross dividend and gross salary which are counted towards previous earning...

Yes, you can... As long as it get taxed and an entry in payslip....

You can show £30000 ....

Ideally you should change it ASAP once you receive your new passport.
Change of circumstances form can be used if you have BRP...

Did you received any letter to submit BIometric details?

You need to maintain £600 as maintenance fund.
The fees you stated is correct.

what document you provided with your application?

plenty of calculators available online... do search on contractor websites....

yes, absolutely legal..

2 & 3 are definitely not required....
Invoices will be either raised by you for the service you provide or may get self billed from some agencies...

yes...

there is no such ceiling of dividends...
if you have not paid yourself dividend, how come you are claiming income from dividend?
Did your current visa expired?