Three bullets, which were removed from the body of Bharatiya Janata Party general secretary Pramod Mahajan during the post-mortem late Wednesday evening, have been sent to the forensic laboratory at Kalina, Santa Cruz, for chemical analysis.

A senior police officer on Thursday said the bullets were sent to the laboratory to ascertain if they were fired from the same revolver, which was allegedly used by Mahajan's younger brother to shoot him. The BJP leader died twelve days after battling for life at P D Hinduja Hospital.

• Pramod Mahajan Shot

Pravin Mahajan, who had used the .32 calibre Browning revolver, had surrendered before Worli police station soon after grievously injuring his elder brother. He was on Wednesday remanded to judicial custody by a local court.

Pravin, who was charged with attempt to murder (Section 307 IPC), will now be charged with murder under Section 302.

The doctors have also taken samples of all the organs, including kidney, lung and liver, of Mahajan's body for microscopic pathalogy test, he said.

The microscopic pathalogy test would be conducted at the government-run J J Hospital. It will take 10 to 15 days for the final reports to conclusively point out the cause of death, the officer added.