Lalawia is a contractor by profession and has assets worth over Rs 69 crore, his affidavit said.
He has filed his nomination from the Serlui seat in Kolasib district bordering Assam.
Meanwhile, Biakmawia of the BJP contesting from Aizawl North -III is the poorest, with assets worth a little more than Rs 10,000.
Among political party chiefs, Chief Minister and state PCC chief Lal Thanhawla is the wealthiest with assets over Rs 9.15 crore followed by former chief minister Zoramthanga of the Mizo National Front with assets valued at Rs 2.16 crore, the affidavits said.
According to the affidavit filed by the candidates, Lal Thanhawla has Rs 89,86,247.50 in bank deposits and his wife Lal Riliani has property worth Rs 85,59,733.69.
Lal Thanhawla has landed property worth Rs 7 crore and the valuation of his wife's landed property is Rs 40 lakh, the affidavits said.
Lalawia is richest candidate with assets worth over Rs 69 crore
Mizoram People's Conference chief Lalhmangaiha Sailo, a retired Indian Revenue Service officer, was worth more than Rs 2.1 crore while Zoram Nationalist Party chief and former Lok Sabha member Lalduhawma was the poorest among political party chiefs with assets valued at Rs 1.7 crore, the affidavits said.
Tomorrow is the last date for withdrawal of candidates for election to the 40-member state Assembly.