Adityanath has already cast his vote in the UP Assembly. The NDA candidate Ram Nath Kovind is yet to nominate any representative for the polling here.
Green-coloured ballot papers will be there for MPs and pink for MLAs.
The presidential polling was the highlight of the first day of the monsoon session of Parliament that saw Prime Minister Narendra Modi reaching four minutes before polling started to cast his vote.
All the 175 MLAs in the AP Assembly, including those of the lone opposition YSRC, had earlier pledged their support to NDA's presidential candidate Ram Nath Kovind.
Parliament in New Delhi RAVEENDRAN AFP Getty Images
The tenure of incumbent Pranab Mukherjee, the 13th president of India, ends on July 24. The special pen will have to be returned to the polling staff. Voting by using any other pen will be held invalid.
Although the opposition AINRC has eight legislators in the House, one of its members P R N Tirumurugan representing Karaikal, however, turned up at the booth separately and after casting his vote he left the venue without talking to media.
GFP leader and state minister Vinod Palyekar said his party had taken the right decision to support Mr Kovind. "All parties must ensure their Members of Parliament (MPs) and Members of Legislative Assembly (MLAs) cast their votes so that not a single vote is wasted", he added.
In terms of the value of the votes, the Sikkim Assembly has the lowest of seven and Uttar Pradesh the highest of 208. Instructions for members of the electoral college, comprising members of Lok Sabha, Rajya Sabha and MLAs, have been displayed outside the polling centre, set up in room number 106 in Vidhana Soudha. All MPs have a similar vote value of 708. Former Chief Minister Ashok Gehlot has cast his vote in Gujarat. Posters have been put up at the polling centre to make the electors aware of the new rule, along with the do's and dont's.
The BJP and allies have almost 63 per cent of the vote while the Congress-led opposition has a little over 35 per cent. Independents and other smaller parties, who have not made their choice known, have two per cent.