# awk -F"," '{gsub(/ +/,"",$2);}1' OFS="," file abc k,abc11, 1000 00 bhk s,bhk22, 2000 00
# perl -F"," -lane '$F[1]=~s/\s+//g;print join(",",@F) ' file abc k,abc11, 1000 00 bhk s,bhk22, 2000 00
