"Membership of political party is a privilege. It is also an act of self oppression where personal views and ambitions are subjected to collective wisdom of the party. At times, the party may flood leaders with privileges and positions. On other occasions, the leader may have to take 'no' as an answer to his desires," Jaitley wrote on his website.
He said the politician or leader denied a ticket must accept the decision with a "smile".
"This becomes a test of his loyalty and discipline. Restraint and silence are always a preferred option. Over reaction may prove be a transient storm in a tea cup. Silence is always dignified and more gracious," he said in an apparent reference to Singh without naming him.
Jaitley, contesting from Amritsar seat, said in election season, many political persons desirous of being candidates succeed in getting a party nomination, but many more get left out.
"A political party is built upon the support of millions of political workers who have sacrificed their time and energy without ever aspiring to hold elected office. What does a politician do when after a successful political career the party is unable to accommodate him once That is when his discipline and political loyalty are to be tested," the Leader of Opposition in the Rajya Sabha wrote.
Upset over denial of ticket, former Union Minister Singh today said he has decided to contest the Lok Sabha elections as an Independent from the Barmer seat and will file his nomination papers tomorrow.
Singh, however, is not resigning from the party yet and said he would consult his colleagues before taking that step.