repo init -u https://github.com/LineageOS/android.git -b cm-14.1 repo sync

The is a chipset from a different era. Released in 2014-2015, this 64-bit, quad-core processor powered countless budget smartphones from brands like Lenovo, Micromax, Infinix, Tecno, and Doogee.

Because MT6735 lacks full kernel sources, you from a similar device (same chipset, similar board). Common porting bases: LineageOS 14.1 (Android 7.1) or 16.0 (Android 9).