My wife doesnt want to mention the word permanent alimony and maintenance in the joint petition.?

Though she is taking 15 lakhs rupees , 5 lakhs cheque and 10 lakhs cash , she is ready to mention 5 lakhs cheque in the petition but not as alimony and mainenance, just as settlement amount . Can she claim alimony in future if we dont mention the word alimony and just 5 lakh cheque as settlement amount in the petition.She doesnt want to take 10 lakh as cheque as that will become taxable . But isnt alimony non taxable.