THE United Democrats of Hongkong (UDHK) said April 21 had to be the final deadline for the Government to table the electoral bill for the 1994/95 elections to the Legislative Council. Party chairman Mr Martin Lee Chu-ming said the Government had already set a very bad precedent for scrapping the right of the council to legislate. ''In the future, the Government may ask China anything for several weeks before it throws back an agreement to the Legco,'' Mr Lee said. ''This treats Legco as nothing.'' Mr Lee also criticised some legislators as intentionally surrendering their own rights as a legislator. ''If you disagree with it, you should vote against it, or amend it. ''But you should not ask China to amend it for you,'' he added. He said this was an insult to the dignity of the council as a legislature. ''The Joint Declaration and the Basic Law clearly state law making is an internal affair,'' Mr Lee said. The liberal party would raise their request for immediate tabling in the coming Legco constitutional affairs panel meeting with the Secretary for Constitutional Affairs, Mr Michael Sze Cho-cheung, next week. Meanwhile, in a meeting with the Director of Planning, Mr Pun Kwok-shing, the UDHK legislators were told that there was no need to set up an official body to handle the planning of cross-border works between China and Hongkong. This was because there were adequate existing informal communication channels, Mr Pun said. The planning chief was quoted as saying that Hongkong officials had good contacts with their Chinese counterparts and there was no need to alter the present relationship. The Government was worried that officials from across the border might find it less free to exchange views after a relationship had been formalised, United Democrat legislator, Mr Albert Chan Wai-yip, said after an hour-long meeting with Dr Pun. Formal meetings have been set up between the two governments to study individual issues like the joint project between Guangdong and Hongkong to clean up Deep Bay. But Mr Chan said there was a need to set up a cross-border meeting to discuss regular projects that were concerned with both Hongkong and China, mainly areas like Shenzhen, Dongguan and Zhuhai. Mr Chan cited the recent example of the proposal of the Zhuhai Government to build a bridge which would cross into Tuen Mun as a result of the lack of co-ordination between the governments. ''We can expect an increase in the number of such cases as Hongkong and China get closer and closer in the run up to 1997,'' he said. Hongkong should have a say in these developments and should be able to channel its opinion to the Chinese side whenever such ideas arise, he said.