1. If they charge 24%interest in delay of payments shouldn't they give the same in the case of late delivering ?
You may refer to the conditions mentioned in the sale agreement in this regard. The charges seemed to be exorbitant on the part of the builders in proportion to the compensation from their side.
2. Can we go to the consumer court and ask for the compensation ?
On being aggrieved by their irrational demand, you may first issue a legal notice claiming your demand as per the losses incurred by you due to their delay in handing over possession/completion.
3 When should we approach the court ? Before taking the possession or after taking it ? As we want to shift there.
It Is always advisable to take possession first and then fight for your rights gradually but firmly.
How shall we protest on the time of possession?
You can raise your protest in writing and have a copy with the acknowledgement from the builder in this regard.