Trader
2616 Points
Joined August 2009
If you receive a demand from your AO to pay advance taxes, then yes there is a compulsion. AO will normally determine estimate based on history of your returns and assessment and if your income has dropped you will have to get the estimate revised and pay the advance tax as per your estimate.
Regarding your question on compulsion, please note that your tax payment itself is compulsory and if you do not pay any amount as per mandated schedule, you will have to pay the interest. There are also provisions for levying penalty. In case of consistent or habitual defaults by you in tax payments, there are provisions for AO to issue you a show cause notice as to why penalty should not be levied on you. You will be given an opportunity to answer.