What is the minimum support required to introduce a no-confidence motion in the Lok Sabha?

In India, a motion of no confidence can be introduced only in the Lok Sabha (the lower house of the Parliament of India). The motion is admitted for discussion when a minimum of 50 members of the house support the motion (under rule 198 of Lok Sabha Rules 16th edition). If the motion carries, the House debates and votes on the motion. If a majority of the members of the house vote in favour of the motion, the motion is passed and the Government is bound to vacate the office.