how to calculate advance tax

tax audit return has been filed for A.Y 2013-14 excluding capital gain. now I want to file a revised return for tht year. is it possible? will thr be any tax payable in.the way of penalty

In my Company (related to print media) we have purchased a software in place of old one, due to which there is a saving of ink upto 10% and Image quality will also enhanced . But it has no impact on life of machine i.e machine life will be same. software has perpetual life and may be changed if new upgraded one is available.

My question is whether future Ink saving may be treated as increase in future Economic benefit and the cost of software should be capitalised...

please solve my confusion suppose my work borwell (hole work) & my nett receipt on borwell work 9 lacs rs. & agriculture income 4 lacs rs., So my income 9+4=1300000 lacs rs., so how my taxable income, in which tax. because 400000 lacs income is tax free income. so how my total income & Which it will be in the slab. 20% ya 30% ??????

PLEASE TELL ME
HOW TO TAKE A OPENING BALANCE OF PROFIT AND LOSS ACCOUNT, CAPITAL ACCOUNT & BALANCE SHEET.
I MEAN TO SAY THAT OPENING BALANCES IS ESTIMATED OR SOME MATHEMATICALLY CALCULATIONS.?
PLEASE TELL ME IN BRIEF.

PLEASE TELL ME
HOW TO TAKE A OPENING BALANCE OF PROFIT AND LOSS ACCOUNT, CAPITAL ACCOUNT & BALANCE SHEET.
I MEAN TO SAY THAT OPENING BALANCES IS ESTIMATED OR SOME MATHEMATICALLY CALCULATIONS.?
PLEASE TELL ME IN BRIEF.

We never charged depreciation on our fixed assets but want to charge it now ... Retrospective effect se karna hoga ?

Sir Brokerage ,securites transaction tax,transaction charges,service tax nd service tax on transaction charges ...all these expenses included in d cost of purchase of share(investment cost)?? or all these charges shown as a revenue expenditure???? For example 1.4.2015 100 share of relince purchase at price 20 rs nd same shares sold on this day 50 share at rs 23 And all other charges..50 rs..net bill due from broker is rs...900(2000+50-1150) How this entry made in books of account ??

Why interest on drawings is deducted from capital ? being an income,

I have a firm and I give legal expenses of Rs.100000 out of which I deduct TDS of Rs.10000 and the payment/withdrawal from bank is 90000.Which entry I will make and how? And further this TDS has been deposited by lawyer,so which entry I will make here?
PLEASE ELABORATE.