With the Central government refusing to share information on circumstances leading to former Prime Minister Lal Bahadur Shastri's death, BJP on Thursday asked the President to intervene in the matter to clear all doubts.

In a memorandum submitted to President Pratibha Patil, the BJP asked her to "direct the government to come clean and clear all doubts on Shastriji's death, which remains an issue even after four decades".

The memorandum quoted an interview of late Shastri's wife Lalita in which she had questioned the circumstances leading to her husband's demise in the then Soviet Union in 1966.

The party said it took the decision to submit a memorandum to the President after the Prime Minister's Office refused to entertain an RTI plea seeking declassification of documents relating to the death of Shastri.

The memorandum said the RTI plea was rejected as declassification of the information could harm foreign relations or lead to incitement of an offence.

The delegation included former Delhi Chief Minister Madan Lal Khurana, Rajya Sabha member Prakash Javadekar and former Union minister Mukhtar Abbas Naqvi.