The position with respect to lapsing of bills is as follows:
A bill pending in the Lok Sabha lapses (whether originating in the Lok Sabha or transmitted to it by the Rajya Sabha).
A bill passed by the Lok Sabha but pending in the Rajya Sabha lapses.
A bill not passed by the two Houses due to disagreement and if the president has notified the holding of a joint sitting before the dissolution of Lok Sabha, does not lapse.
A bill pending in the Rajya Sabha but not passed by the Lok Sabha does not lapse.
A bill passed by both Houses but pending assent of the president does not lapse.
A bill passed by both Houses but returned by the president for reconsideration of Houses does not lapse.