New Delhi, Oct. 16 -- Raising procedural and constitutional concerns, Congress President and Leader of Opposition in the Rajya Sabha Mallikarjun Kharge has written a fourth letter to Prime Minister Narendra Modi, seeking an immediate all-party meeting to discuss proposals on delimitation before they are finalised and brought to Parliament.

In his letter sent on Friday, Kharge flagged what he described as an "unprecedented" 64-day gap since the Monsoon Session was adjourned sine die on August 13 without being formally prorogued, and cautioned the government against pushing through far-reaching constitutional amendments without consensus.

"It has already been 64 days since the Monsoon Session of Parliament was adjourned sine die on August...