I think the Chinese have deployed 1 mechanised, 1 motorised (8x8) and multiple infantry brigades.
Also, any PAP deployment is unknown in open source. IIRC over a dozen PLA divisions were transferred over to the PAP since the 2000s. So you can't really consider manpower a problem for them.
For those who do not know, the Chinese ground forces are divided into the regular PLAGF supported by the defence budget and the PAP supported by the internal security budget. While the PLAGF's strength has reduced to less than a million, all that reduced strength has been sent into the PAP. So the PAP is about 1.5 million strong and many of those consist of PLAGF's earlier divisions. The mobile force within PAP is estimated to be 14 divisions strong. This is how they hide the true strength of their army, by calling them armed police. There's also a third category, under the PLAGF, which are reserve forces, and these are 500,000 to a million strong as well. There are other types of units as well, like Border Defence Guards similar to BSF, ITBP etc under the Ministry of Public Security. There's also the Bingtuan (they mainly perform economic activities, but perform combat duties as well, also the ones running the concentration camps in Xinjiang) and Militia (basic conscripts), these two collectively making over 10 million men. In simple words, China has 5 different armies for a grand total of anywhere between 12-15 million men. The actual strength of most of these forces are unknown, and most of them are put to work, so they pay their way as the CPC's exclusive labour force. And then, facing India, there are 40k troops in the TMD and 70k troops in the XMD. So the PLAGF is only a drop in the bucket under the CMC.
