Hey as per my idea bonus ratio is vary in different years and here I am giving you its basic details

About BPCL
Bharat Petroleum Corporation Limited (BPCL) is an Indian state-controlled oil and gas company headquartered in Mumbai, Maharashtra. The Corporation operates two large refineries of the country located at Mumbai and Kochi.

Bonus issue of BPCL
Announcement Date Bonus Ratio Record Date Ex-Bonus Date
25-05-2012 01:01 - 13-07-2012
28-09-2000 01:01 05-01-2001 18-12-2000
02-09-1994 02:01 16-11-1994 14-10-1994

Products in BPCL
Fuels & Services
Bharatgas
MAK Lubricants
Aviation
Refineries
Gas
Industrial & Commercial
Bharat PetroResources Limited (BPRL)
International Trade
Proficiency Testing
BPCL Group