Please. Urgent !!

praveen (student) (34 Points)

26 April 2019  
My parents are buying house for 46 lakhs. my father is taking loan to buy home. we gave 13 lakhs as advance, current owner is telling us that he will not accept cheque for remaining amount, as it will attract tax.
what should we do? bank will give only cheque. It is residential property... not in venture and not in apartment. Is it true that he have to pay tax??
he built that house 20 years back and now he is selling.