House construction & renovation

4 years ago

We gave contract to construct 2nd floor & some renovation work to local contractor .
We had nothing in written .
He just given us quoatation estimated figure initially.
He has taken much more time to finish the assigned work ., & After that he is demanding more money than he made actual work done .
Note :- he hasn't made many things which were coming in his work ( poor plumbing + doors + windows +ladders ) , & which ever work he had done is of very poor quality & low grade than he is charging amount .

Now he has sent us legal notice thru advocate & demanding money as per initial quotation .
Note :- ( out of 100% we constructed only80% from him , & still he is demanding for full work )

My question is , does he take any legal actions with out any signed physical paper contract agreement made initially ?
As we had made his full payment towards actual work done by him .( Payment done 50% by chq & 50% cash - he hasn't given any receipt but we have telephonic recording of cash payment done )
Is telephonic recording is a valid proof ?

Question 2 :- i want to take refund from him for the low quality work he made & i had to spent more money for faulty & very poor work he has done .

Many things which he supposed to do , he hasn't done as per it due to that we had to bare the remaining work he stopped to do .
Plus we had to make up for faulty & unsatisfactory work he done .

PL. Give advice regarding this matter
Do I need to reply back on his notice , or without any signed proof he can not do anything ?
Can I go to consumer court to complain about cheating ??