taxi charges paid to our consultant

5%%%%%

If your daily URD purchases exceeds 5000/ you need to pay RCM on taxi fare @ 5%.. For calculating 5000/ limit you have to to deduct exempted supplies . For example your urd purchases in a day is 7000/ but it includes 3000/ as interest paid. So it is 4000/ which will be counted as purchases from urd as interest is exempted service.

can we avail itc on it paid under rcm and for furtherance of our business ?

yes you can avail ITC

and can we avail itc on GST paid under rcm on transportation for goods sent ?

Oh sure ITC can be availed for RCM on transport charge

yes boss no issue

taxi charges comes under blocked item 'rent a cab service' u/s 17 as I read so itc can't be claimed @ Chhatra Ji
is it correct?

In case of theRent a cab See ice u/s 17(5) with 5% ITC there is no ITC can be claimed